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(Click for frequent words.) 77 surgeon 77 neurosurgeons 70 orthopedic surgeons 70 doctors 70 Surgeons 69 surgical 68 vascular surgeons 68 plastic surgeons 67 cardiologists 66 cardiac surgeons 64 thoracic surgeons 64 surgical procedures 63 urologists 63 surgeries 63 laparoscopic surgery 63 neurosurgeon 62 cardiothoracic surgeons 62 neurosurgery 62 physicians 62 Surgeon 62 neurosurgical 61 da Vinci robot 61 anesthesiologists 60 surgery 60 anesthetists 60 radiologists 60 Neurosurgeons 60 laparoscopic surgeries 59 Plastic surgeons 59 plastic surgeon 59 ophthalmologists 59 cardiothoracic surgeon 59 ENT surgeons 58 cardiac surgeon 58 gynecological procedures 58 spine surgeons 58 prostatectomies 58 robotic prostatectomy 58 gynecological surgeries 58 interventional radiologists 58 orthopedic surgery 58 laparascopic surgery 58 refractive surgeons 58 surgeons anesthesiologists 58 minimally invasive surgery 58 interventionalists 57 laparoscopic 57 cardiac surgery 57 laparoscopic techniques 57 microsurgery 57 cosmetic surgeons 57 anaesthesiologists 57 reconstructive surgeons 57 dentists 57 microsurgeons 57 hip arthroscopy 57 pediatric cardiologists 57 neuro surgeons 56 laparoscopic surgeon 56 vascular surgeon 56 gynecologists 56 urologic surgeons 56 gynecologic surgery 56 thoracic surgeon 56 pediatric surgeon 56 robotically assisted 56 surgical procedure 56 minimally invasive techniques 56 colorectal surgeons 56 prosthetists 56 endoscopic surgical procedures 56 cardiothoracic surgery 56 reconstructive surgeon 56 bariatric surgeons 56 radiation oncologists 55 minimally invasive surgeries 55 laparascopic 55 transplant surgeon 55 craniotomy 55 orthopedic 55 anesthesia 55 laproscopic 55 Cardiologists 55 Orthopaedic 55 keyhole surgery 55 anesthetist 55 catheterizations 55 Surgery 55 surgeons gynecologists 55 orthopaedists 55 limb lengthening 55 Fidel Realyvasquez Jr. 55 endoscopic surgical 54 balloon sinuplasty 54 Dr. Robert Spetzler 54 Reconstructive surgeon 54 endoscopists 54 endoscopic surgery 54 obstetricians 54 minimally invasive procedure 54 Doctors 54 Radiologists 54 microsurgical 54 clinicians 54 angioplasty procedures 54 neurosurgical procedures 54 orthodontists 54 robotically assisted surgery 54 vaginal hysterectomies 54 endovascular procedures 54 neuroradiologists 54 neurologists 54 bariatric surgeon 54 anesthesiologist 54 radiologist 54 Surgical 54 urologist 54 orthopedic surgeon 54 maxillofacial 54 oncologists 54 laparoscopy 54 reconstructive 54 cardiothoracic 54 laparoscopic procedure 53 Laparoscopic 53 endoscopic 53 periodontists 53 implanting pacemaker 53 Interventional cardiologists 53 robotic prostatectomies 53 suturing 53 Intuitive da Vinci 53 facial cosmetic surgery 53 minimally invasive 53 obstetric 53 electrophysiologists 53 vascular surgery 53 laparoscopically 53 small keyhole incisions 53 oncoplastic 53 microsurgeon 53 thoracic surgery 53 pediatric orthopedic 53 urological procedures 53 craniofacial surgeon 53 small incision cataract 53 TORS 53 microsurgical techniques 53 cosmetic surgeon 53 implant 53 LASIK surgeons 53 LASIK surgeries 53 cataract surgery 53 laparoscopic technique 53 craniofacial surgery 53 minimally invasive laparoscopic surgery 53 nonsurgical 53 valvuloplasty 53 patients 53 mitral valve repair 52 tiny incisions 52 angioplasties 52 gall bladder removal 52 intensivists 52 separating conjoined twins 52 podiatric surgeons 52 orthopedic surgeries 52 lumbar fusions 52 incisionless surgery 52 minimally invasive cardiac 52 Orthopedic surgeons 52 Robodoc 52 Intuitive Surgical da Vinci 52 laparoscopic prostatectomy 52 endoscopic visualization 52 sonographers 52 oncoplastic surgery 52 surgical oncologist 52 da Vinci Robot 52 cardiac catheterisation 52 endoscopy 52 maxillofacial surgery 52 intra operative 52 cardio thoracic surgeon 52 canaloplasty 52 orthopedists 52 smaller incisions 52 coblation 52 da Vinci surgical 52 reconstructive surgery 52 laparoscopic hysterectomies 52 urological surgeon 52 partial meniscectomy 52 cardiac catherization 52 minimally invasive robotic 52 surgically 51 partial nephrectomies 51 Transplant surgeons 51 minimally invasive procedures 51 urology 51 pediatric neurologists 51 performed laparoscopically 51 LenSx laser 51 Dr. Jacono 51 less invasively 51 Robotic Surgery 51 perfusionists 51 Dentists 51 pediatric neurosurgeons 51 orthopedic trauma 51 Aquavella 51 hepatologists 51 minimally invasive gynecologic 51 gallbladder removal 51 laparoscopic surgeons 51 gall bladder removals 51 Sean Boutros 51 Dr. Norman Schachar 51 spinal anesthesia 51 cardio thoracic surgeons 51 biceps tenodesis 51 KYPHON Balloon Kyphoplasty 51 Surgical System 51 trauma surgeon 51 awake craniotomy 51 endoscopes 51 ENT specialists 51 gynecologic procedures 51 daVinci Surgical System 51 Arthroplasty 51 Ophthalmologists 51 transplant 51 laparoscopies 51 gamma knife 51 bariatric surgeries 51 facial transplantation 51 Refractive Surgeon 51 interventional radiologist 51 cataract removals 51 endodontists 51 Mohs micrographic surgery 51 laser refractive 51 oesophagectomies 51 spinal surgery 51 abdominal hysterectomies 51 laparoscopic hysterectomy 51 Interventional radiologists 51 cataract surgeries 51 coronary bypass 51 nephrectomies 50 ob gyns 50 minimally invasive mitral valve 50 bariatric procedures 50 successfully implanted pacemaker 50 spine surgeon 50 laser liposuction 50 interventional neuroradiologist 50 interventional procedures 50 CRNAs 50 Interventional Cardiologist 50 corneal transplants 50 interventional neuroradiologists 50 cardiology 50 Laparoscopic surgery 50 Gamma Knife 50 Dr. Cadeddu 50 OtisKnee 50 revision rhinoplasty 50 Orthopedic Surgeon 50 ASCs 50 donor corneas 50 transradial 50 laparoscopic surgical 50 LASIK procedures 50 cosmetic dentists 50 surgeons neurosurgeons 50 midwives 50 Maria Siemionow 50 interventional cardiologists 50 bariatrics 50 nurses 50 neuro surgeon 50 Spinal fusion 50 tubal ligation reversal 50 surgical biopsies 50 hospitals 50 invasive procedure 50 prosthodontic 50 Radiologist 50 ophthalmic surgeons 50 endonasal 50 coronary angioplasty 50 cohesive gel implants 50 LASIK eye 50 aortic valve replacements 50 ACL reconstructions 50 bypass surgeries 50 Orthopedists 50 RALP 50 catheterization 50 anaesthesiologist 50 Bohdan Pomahac 50 minimally invasive technique 50 lobectomies 50 cataract removal 50 donor nephrectomy 50 interventional catheterization 50 gastroenterologists 50 SURGEONS 50 PillCam capsule endoscopy 50 oculoplastic 50 da Vinci Surgical 49 CTs MRIs 49 EBUS 49 orthopedics 49 mitral valve replacement 49 Minimally Invasive 49 Coronary artery bypass 49 catheterization lab 49 coronary artery bypass grafts 49 limb salvage 49 Milton Waner 49 separating Siamese twins 49 minimally invasive laparoscopic 49 daVinci robot 49 laparoscopic cholecystectomy 49 pathologists 49 BIRMINGHAM HIP Resurfacing 49 nurse anesthetists 49 gynecologic surgeries 49 obstetrics 49 hysteroscopy 49 opthamologists 49 esophagectomy 49 abdominal incision 49 endoscopic surgeries 49 unblock clogged arteries 49 surgeons anesthesiologists nurses 49 facial rejuvenation procedures 49 neonatologists 49 intubations 49 laparoscopic instruments 49 lumbar spine fusion 49 minimally invasive endoscopic 49 bone grafting 49 endoscopic procedure 49 DaVinci robot 49 Surgeries 49 laparoscopes 49 breast augmentations 49 skin grafting 49 Dr Ramakant Panda 49 percutaneous procedures 49 brachial plexus injuries 49 maxillofacial surgeon 49 Joint Replacement 49 stenting procedure 49 surgeons anesthetists 49 surgeons oncologists 49 conjoined Egyptian 49 Vascular Surgeons 49 craniotomies 49 atrial ablation 49 abdominal incisions 49 radical prostatectomies 49 tumescent liposuction 49 TKAs 49 Bariatric Surgeons 49 ablations 49 lasik eye 49 prosthodontists 49 iMRI 49 caesarian sections 49 arthroscopies 49 single incision laparoscopic 49 opthalmologists 49 neurosurgeries 49 pa tients 49 stent grafts 49 gynecologist 49 Minimally invasive 49 catheterization procedure 49 Kleinert Kutz 49 Spine Surgery 49 otoplasty 49 elective angioplasties 49 MAKO RIO 49 nonsurgical treatments 49 Anastasio Montero 49 heart catheterizations 49 endoscopic retrograde cholangiopancreatography ERCGrant Parpan 49 diagnostic catheterization 49 appendectomies 49 nonsurgical procedure 49 pediatric 49 Dr. Paolo Macchiarini 49 hernia repair 49 perinatologists 49 mammary artery 49 obstetrical 49 laparoscopic nephrectomy 49 bone grafts 49 laparoscope 49 prosthodontist 49 VATS lobectomy 49 gastric bypasses 49 endoscopist 49 Urologists 48 interventional radiology procedures 48 Adjustable Gastric Banding 48 otolaryngologists 48 neuroArm 48 keyhole incisions 48 surgeons orthopedic surgeons 48 SILS 48 ASPS Member Surgeon 48 anaesthesiology 48 stenting procedures 48 rhinoplasties 48 Orthopedic 48 domino transplant 48 surgical oncologists 48 Plastic Surgery 48 neuro oncologists 48 oncologic surgery 48 subspecialist 48 laminectomies 48 adjustable gastric band 48 Dr. Kodi Azari 48 catherization 48 minimally invasive spinal 48 cardiologist 48 bypass grafts 48 interventional cardiologists interventional radiolactivity SPM# 48 Vascular Surgeon 48 cardiac ablation procedures 48 Laparoscopy 48 electively 48 interventional cardiac 48 liposuctions 48 da Vinci robotic 48 pediatric cardiology 48 Surgeons RACS 48 cerebral angiogram 48 physicans 48 cardio thoracic surgery 48 barbed sutures 48 Orthopedic surgeon 48 abdominal hysterectomy 48 cardiologists radiologists 48 caesarean sections 48 CT scanning 48 iLASIK 48 Dr. Pierre Delaere 48 cath labs 48 Cardiac Surgery 48 microdebrider 48 reconstructive surgeries 48 Stryland 48 elective surgeries 48 endoscopic procedures 48 Birmingham Hip Resurfacing 48 laparoscopic colectomy 48 pediatric cardiologist 48 robotic urologic surgery 48 scarless 48 CyberKnife 48 inguinal hernias 48 reconstructive procedures 48 septoplasty 48 craniectomy 48 AF ablation 48 OB GYNs 48 cardio thoracic 48 Smart Lipo 48 thoracoscopic 48 urological gynecological 48 pediatric neurosurgery 48 MAKO Tactile Guidance 48 tonsillectomies 48 breast augmentation 48 stereotactic biopsy 48 spinal fusion procedures 48 tissue expander 48 intubating 48 reproductive endocrinologists 48 nephrologists 48 endocrinologists 48 Gastroenterologists 48 elective orthopedic 48 bone marrow aspiration 48 pediatric orthopedics 48 Minimally invasive procedures 48 laparoscopic appendectomy 48 transplants 48 oral surgeon 48 obstetrician gynecologists 48 maxillofacial surgeons 48 assisted prostatectomy 48 minimally invasively 48 laparoscopic bariatric surgery 48 gynecological surgeon 48 cystoscope 48 implantations 48 balloon angioplasties 48 urogynecology 48 spinal surgeries 48 cerclage 48 mitral repair 48 Strattice ™ 48 interventional cardiology 48 interventionalist 48 Dr. Samadi 48 implants 48 DIEP 48 less invasive laparoscopic 48 Cataract surgery 48 Oncologists 48 IntraLase laser 48 reattach severed 48 DIEP flap 48 VNUS Closure procedure 48 urologic oncologist 48 arterial grafts 48 abdominoplasty 48 stereotactic radiosurgery 47 dentists orthodontists 47 gynecologic 47 spinal deformities 47 laser lipo 47 maxillo facial 47 minimally invasive surgical 47 pediatric liver transplants 47 surgical interventions 47 breast biopsies 47 Neurosurgical 47 mammographers 47 Kah Orukotan 47 functional endoscopic sinus 47 computed tomography scans 47 obstetrician 47 AlphaCor 47 repair hernias 47 da Vinci r 47 Orthopaedic Surgeon 47 laparoscopic gastric bypass 47 prosthodontics 47 uterine fibroid tumors 47 dermatologists 47 neuromuscular dentistry 47 transesophageal echocardiography 47 catheterisation 47 Sir Magdi 47 haematologists 47 thoracic 47 adjustable gastric banding 47 refractive surgeon 47 fluoroscopy 47 surgical instruments 47 dental implant 47 lumbar discectomy 47 LAP BAND R 47 interventional 47 obstetricians gynecologists 47 Physician assistants 47 implant dentistry 47 cardiothoracic surgical 47 nonsurgical treatment 47 Anaesthetists 47 endodontics 47 bleed internally 47 Dr Maria Siemionow 47 separated conjoined twin 47 video assisted thoracoscopic 47 Dr Stitz 47 CABG surgeries 47 incisions 47 orthopedics neurosurgery 47 Surgical Associates 47 cranial facial 47 hysterectomies 47 liposuction 47 Marcellin Little 47 congenital cardiac 47 intravascular ultrasound 47 Lasik procedure 47 cardiac catheterization 47 hysterectomy 47 Lawrence Lubbers 47 cataract surgeons 47 lung biopsies 47 discogenic pain 47 LASIK procedure 47 cosmetic surgery procedures 47 gastric bypass surgeries 47 pediatric urologist 47 liposuction procedures 47 minimally invasive outpatient 47 laparoscopic radical prostatectomy 47 neuroradiology 47 cardiology neurology 47 targeted muscle reinnervation 47 diagnostic catheterizations 47 nonsurgical cosmetic procedures 47 neuroradiologist 47 nurse midwives 47 cleft lip palate 47 invasive cardiology 47 transplanting kidneys 47 percutaneous coronary interventions 47 laparoscopic bariatric 47 phakic IOLs 47 Endoscopic 47 ViKY 47 elective angioplasty 47 pacemakers implanted 47 endourology 47 angioplasty 47 nephrologist 47 cardiac catheterization laboratory 47 unnecessary mastectomies 47 pediatric ophthalmologist 47 arthroplasty 47 diagnostic angiography 47 epidural anesthesia 47 gynecologic oncologists 47 Dr. Li Poa 47 endovascular repair 47 Robotic Surgical System 47 CABG procedures 47 Microsurgery 47 StomaphyX 47 Dr. Tomoaki Kato 47 trabeculectomy 47 cranioplasty 47 gynecological oncologist 47 Minimally Invasive Surgery 47 Hip resurfacing 47 orthotists 47 anastomoses 47 administering anesthesia 47 facial reanimation 47 SmartLipo 47 dissolvable sutures 47 endoscopic ultrasound 47 Cath Lab 47 Minimally invasive surgery 47 radiology technicians 47 corneal transplantation 47 cardiac cath 47 anesthesiology 47 pediatric cardiac 47 fat grafting 47 fused skulls 47 gastroenterology 47 Dr. Domanskis 47 transradial approach 47 subspecialists 47 Endoscopy 47 Dr. Cliby 47 Caesarean 47 orthopedic spinal 47 undergoing spinal fusion 47 Laser Spine Institute 47 physician 47 Wirginia Maixner 47 tummy tuck liposuction 47 intubate 47 coronary interventions 47 asymmetrical breasts 47 cardiology orthopedics 47 labiaplasty 47 Dr. Assassa 47 bariatric 47 caesarean 47 sleeve gastrectomy 47 radiology 47 buttock augmentation 46 MAKOplasty 46 spinal fusion 46 reattachment surgery 46 conjoined twins separated 46 cardiac CT angiography 46 nurses anesthesiologists 46 hip resurfacing 46 implant defibrillator 46 Sir Magdi Yacoub 46 da Vinci Si 46 retroperitoneal 46 catheterization laboratory 46 microsurgery techniques 46 Bernard Devauchelle 46 conventional laparoscopy 46 excisional 46 craniofacial 46 cardiac catheterization procedure 46 DALK 46 insert catheter 46 perforated appendicitis 46 Kidney transplants 46 radiotherapists 46 anterior pelvic 46 orthopedic surgical 46 Cardiac catheterization 46 Cosmetic Surgeon 46 Skull Base 46 Cholecystectomy 46 cath lab 46 Ultherapy 46 Dr Ulrike Muschaweck 46 fracture fixation 46 cardiology dermatology 46 tubal ligations 46 atrial fibrillation ablation 46 liposculpture 46 ductal lavage 46 neuro interventional 46 laparoscopic procedures 46 neurosurgeons orthopedic surgeons 46 sonographer 46 USGI 46 Bariatric Surgeon 46 artery bypass 46 needle biopsies 46 preventive mastectomies 46 intravenous sedation 46 intraoperative MRI 46 Gastric banding 46 urologic oncology 46 SBUMC 46 Mohs surgery 46 Nurse midwives 46 spinal fusions 46 postsurgical 46 tummy tuck 46 breech babies 46 Gruessner 46 assisted laparoscopic 46 laparoscopic gall bladder 46 urologic surgery 46 intracapsular 46 pediatric orthopedic surgeon 46 oncologist 46 cardiovascular surgeon 46 Breast augmentation 46 cardiologists neurologists 46 Cosmetic surgeons 46 bariatric surgery 46 ENTs 46 Dr. Atcha 46 body contouring procedures 46 HoLEP 46 separate adult craniopagus 46 Sonographers 46 antireflux surgery 46 AAOS Annual Meeting 46 laproscopic surgery 46 forceps 46 OBGYNs 46 incision 46 VASER Lipo 46 Vaser 46 LASIK laser 46 Issa Ali Ilwan 46 Bronchoscopy 46 fluoroscopic guidance 46 LANAP 46 Thoracic Surgeons 46 nonsurgically 46 Laser Spine 46 cardiac cath lab 46 mommy makeover 46 Surgical Specialists 46 Reconstructive surgery 46 neurointerventional 46 internists 46 Laser Bra 46 injecting Botox 46 arthroscopes 46 CorPath 46 interventional radiology 46 esthetic dentistry 46 lumbar fusion 46 minimally invasive endovascular 46 explanted 46 NeuroArm 46 Ventricular Assist Device VAD 46 nurses Keyse 46 caesarean deliveries 46 unicondylar 46 endobronchial ultrasound 46 Professor Agostino Pierro 46 Body contouring 46 colon resection 46 liver resection 46 endoscopic sinus surgery 46 unclog arteries 46 pediatric orthopedic surgeons 46 Ramakant Panda 46 Plastic Reconstructive 46 transplant co ordinators 46 Cardio thoracic 46 registered nurse anesthetists 46 preoperative evaluation 46 doctor 46 diagnostic cardiac catheterization 46 #D/#D ultrasound 46 pelvic anatomy 46 DIEP Flap 46 Intensivist 46 podiatric physicians 46 Tummy tucks 46 minimally invasive aortic valve 46 Siemionow 46 ENT surgeon 46 breast augmentation liposuction 46 varicose vein removal 46 Hospitals 46 Cyberknife 46 limb sparing 46 oesophagectomy 46 whitening treatments 46 pulmonary artery catheters 46 radiologic technologists 46 Bonati Institute 46 Dr. Genecov 46 Interventional Radiology 46 unnecessary hysterectomies 46 cauterization 46 neurovascular procedures 46 partial mastectomy 46 scarless surgery 46 Dr. Maria Siemionow 46 hyperbaric oxygen treatment 46 computerized mannequins 46 Respiratory therapists 46 radiation oncologist 46 labral repair 46 interventional cardiologist 46 musculoskeletal orthopedic 46 Urology 46 pedicle screws 46 laser dentistry 46 inguinal hernia repair 46 ultrasound 45 orthopedic oncologist 45 catheter ablations 45 Dr. Behnaz Yazdanfar 45 cosmetic surgery 45 Professor Paolo Macchiarini 45 tubal reversal 45 neo natal ICU 45 pediatric ophthalmology 45 gastric imbrication 45 gallbladder removals 45 pediatric subspecialists 45 procedure 45 resections 45 labioplasty 45 thoracic surgical 45 telerobotic surgery 45 pyeloplasty 45 TLIF 45 orthodontic 45 surgical oncology 45 abdominal surgeries 45 Swan Ganz catheter 45 Vein Clinic 45 dentistry 45 Harefield Hospital 45 unblock arteries 45 surgical specialties 45 electrophysiology procedures 45 gynecology 45 Cosmetic Surgery 45 endovascular therapy 45 transplantation 45 cleft palettes 45 IV sedation 45 groin hernias 45 coronary bypass surgery 45 surgical staplers 45 allopathic physicians 45 pump CABG 45 gynecological oncologists 45 conjoined twins 45 Balloon Kyphoplasty 45 gynaecologic 45 ventral hernias 45 rhinoplasty 45 laboratory technologists 45 liposuction breast augmentation 45 Vasclip 45 paediatrics gynecology 45 endoscopies 45 neuro radiologist 45 Leksell Gamma Knife Perfexion 45 gynecologic oncologist 45 PCIs 45 cardiac catheterizations 45 Neurologists 45 radiographers 45 Ob Gyn 45 mitral valves 45 minimally invasive treatments 45 Gynecologic 45 wavefront guided LASIK 45 Carotid stenting 45 defective aortic valve 45 liver transplant surgeon 45 emergently 45 Lt. Col. Drew Kosmowski 45 catheterization labs 45 OB GYN 45 eyelash transplant 45 cardiac catheterization labs 45 root canal therapy 45 surgury 45 cataract extraction 45 neurologists cardiologists 45 lasik surgery 45 gangrenous wounds 45 ablation procedures 45 Nurse anesthetists 45 lasik 45 Ophthalmologist 45 dermatology urology gynecology orthopedics 45 cm incision 45 lumbar disc replacement 45 electrophysiology lab 45 lipoplasty 45 Dr. Andreas Tzakis 45 plastic surgeons dermatologists 45 thoracic surgeries 45 TRAM flap 45 Anesthetists 45 exstrophy 45 pediatric neurosurgeon 45 endoscopically 45 radial artery 45 Guyuron 45 renowned orthopedic surgeon 45 Dr Sharan Patil 45 interventional neuroradiology 45 Laser Vaginal Rejuvenation 45 Orthopedics 45 geriatricians 45 assisted laparoscopic prostatectomy 45 urologists gynecologists 45 bariatric procedure 45 carotid surgery 45 osteoporotic compression fractures 45 thoracic aortic aneurysms 45 hygienists 45 Dr. Feiz 45 scalpel blade 45 vasectomy reversal 45 Cardiothoracic Surgeons 45 rhinoplasty liposuction 45 endovascular specialists 45 Dr. Thomas Diflo 45 Optomap 45 reconstructive surgical 45 Dr. Ammar Bafi 45 inserted titanium rod 45 Paniello 45 thoracoscopy 45 Bascom Palmer 45 heart cath 45 Dr. Sherzoy 45 breast biopsy 45 twins conjoined 45 Trusted LASIK Surgeons 45 Greg Mathien 45 abdominoplasty tummy tuck 45 Spinal Surgery 45 Dr. Bassichis 45 SureSmile 45 vitreo retinal 45 throat ENT 45 LASIK surgeon 45 lung lobe 45 VEPTR 45 topical anesthesia 45 Laparoscopic Surgeons 45 lung transplants 45 podiatric medicine 45 carotid stents 45 consultant anesthetist 45 liver transplants 45 neonatal 45 laparotomy 45 Cardiac Surgeon 45 Dr. Ghavami 45 knee arthroscopies prostate biopsies 45 kidney pancreas transplants 45 refractive surgery 45 spinal pathologies 45 Ponseti Method