Related by context. Frequent words. (Click for all words.) 66 Fragile X 62 genetic disorder 60 genetic defect 60 developmental disorder 59 autism spectrum disorders 57 autism spectrum disorder 57 gene mutation 57 Duchenne muscular dystrophy 57 autism 56 mutated gene 56 neurodegenerative disease 55 Tourette syndrome 55 neurological disorder 55 defective gene 54 ADHD 54 developmental disorders 54 genetic mutation 54 Duchenne 53 autism spectrum 53 cystic fibrosis 53 neuroblastoma 53 genetic disorders 53 Alzheimer disease AD 53 epilepsy 52 disorder ADHD 52 developmental disability 52 genetic variant 51 inflammatory bowel disease 51 genetic mutations 51 disorders 51 progeria 51 gene variant 51 insulin resistance 51 sickle cell disease 50 schizophrenia 50 mutation 50 genetic abnormalities 50 neurological 50 developmental delays 50 neurodegeneration 50 neurological disorders 50 Gaucher disease 49 Down syndrome 49 genetic defects 49 cognitive deficits 49 muscular dystrophy 49 psychiatric disorders 49 sleep disordered breathing 49 genetic variations 49 neurodegenerative disorders 49 neurological diseases 49 dwarfism 49 autoimmune disease 49 mutations 49 autoimmune 49 retinitis pigmentosa 49 onset diabetes 49 disorder 48 obstructive sleep apnea 48 Pompe disease 48 neurodegenerative 48 RLS 48 iron deficiency 48 neurodegenerative diseases 48 X chromosome 48 epigenetic 48 gene mutations 48 Attention Deficit Hyperactivity Disorder 48 amyotrophic lateral sclerosis ALS 48 celiac disease 47 birth defect 47 autistic spectrum 47 autoimmune disorder 47 Fabry disease 47 sleep disorders 47 metabolic disorders 47 dystonia 47 mental retardation 47 cognitive impairment 47 hyperactivity 47 autistic 47 metabolic syndrome 46 bipolar disorder 46 genetic variants 46 genetic variation 46 vitamin D deficiency 46 macular degeneration 46 Alzheimer disease 46 Autism 46 psychiatric illnesses 46 peanut allergy 46 diabetic retinopathy 46 related macular degeneration 46 Dyslexia 46 narcolepsy 46 leukemias 46 Sleep apnea 46 Asperger syndrome 46 acute lymphoblastic leukemia 46 restless legs 45 Crohn disease