Related by context. Frequent words. (Click for all words.) 83 epidemiologic 67 epidemiological studies 65 epidemiology 63 Epidemiological 63 epidemiologic studies 59 epidemiologists 57 observational studies 55 prospective cohort 53 Epidemiology 53 meta analysis 53 epidemiologist 52 observational study 52 longitudinal study 52 randomized trials 51 NHANES 51 longitudinal studies 50 Nutrition Examination Survey NHANES 49 Cancer Registry 49 meta analyzes 49 scientific 48 dietary intake 48 WHO 47 randomized controlled trials 47 Health Organization 47 etiology 47 foodborne disease 47 dietary patterns 47 causative agent 47 highly pathogenic avian influenza 47 Health Organization WHO 47 empirical 47 PLoS Medicine 47 prevalence 46 virologists 46 mathematical modeling 46 Health Organization PAHO 46 CDC Morbidity 46 randomized clinical trials 46 Health Organisation WHO 46 multicenter study 46 Interview Survey 46 authors conclude 46 observational 46 Epidemiologist 46 genetics 46 CIDRAP News 46 randomized clinical 46 disease 45 antimicrobial resistance 45 Disease Prevention 45 immunological 45 socio demographic 45 Nutrition Examination Survey 45 randomized controlled clinical 45 CDC 45 Health Organisation 45 neurobiological 45 Prevention CDC 44 generalizable 44 H. pylori infection 44 placebo controlled trials 44 preventive medicine 44 perinatal 44 infectious disease 44 HPAI 44 randomized controlled trial 44 neuropsychiatric 44 studies 44 comorbidity 44 sociological 44 GWAS 44 clinical 43 Health HSPH 43 virologist 43 Pasteur Institute 43 hypercholesterolemia 43 NEJM 43 proteomic 43 measles vaccination 43 epidemic 43 toxicological 43 Medical Research ICMR 43 modifiable risk 43 pandemic H#N# 43 cardiovascular mortality 43 Epidemiologists 43 multicenter 43 HCV infection 43 metabolic syndrome 43 serum samples 43 study 43 genetic susceptibility 43 influenza vaccination 43 RCTs 43 neuropathology 42 neuropsychiatric disorders 42 heritability 42 influenza 42 antioxidant supplements 42 vaccination 42 outbreak