Related by context. Frequent words. (Click for all words.) 65 tissue samples 60 genotyped 60 samples 59 gene expression profiles 56 stool samples 56 fecal samples 56 urine samples 55 Tissue samples 55 genotypes 54 semen samples 54 genomic DNA 54 serum concentrations 53 mRNA expression 53 genotypic 53 serological 52 NHANES 52 saliva samples 52 mtDNA 52 PCa 52 nasal swabs 52 transfected 51 swab samples 51 gene expression patterns 51 n = 51 genotype 50 specimens 50 IgM 50 prospective cohort 50 sera 50 DNA samples 50 genetic markers 50 RT PCR 50 haplotypes 50 alkaline phosphatase 50 HCV infected 50 semen sample 50 cognitively normal 50 cryopreserved 49 METHODS 49 End Results SEER 49 ferritin 49 immunohistochemistry 49 hydroxyvitamin D 49 specific antigen 49 titer 49 cDNA 49 Biopsies 49 heterozygous 49 titers 49 gene sequences 48 ± SD 48 serum 48 viral loads 48 substudy 48 mitochondrial DNA 48 fasting insulin 48 EGFR mutations 48 differentially expressed 48 pancreases 48 adenoma 48 pg mL 48 cytogenetic 48 serum creatinine 48 creatinine 48 ng mL 47 CTCs 47 nmol L 47 somatic cell 47 Mitochondrial DNA 47 cerebrospinal fluid CSF 47 prostate biopsy 47 situ hybridization 47 glomerular filtration rate 47 histopathology 47 renal transplant 47 Surveillance Epidemiology 47 biochemical markers 47 confirmatory tests 47 autoantibodies 47 antibody responses 47 ng ml 47 throat swabs 47 CD# + [002] 47 eGFR 47 oocytes 47 sample 47 microarray analysis 47 biopsies 47 homozygous 47 subclinical 47 virological 47 ACTH 47 DNA sequences 47 Genotyping 46 viral load 46 fasting glucose 46 Lp PLA2 46 cheek swabs 46 sediment samples 46 covariates 46 transgenic mice