Wade Hampton Frost and the index case concept.
Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106-4984, USA. tmd5@cwru.edu
T M
TM
Daniel
D004196:Disease Outbreaks / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D011634:Public Health / Q000266:history*; D014376:Tuberculosis / Q000453:epidemiology / Q000266:history*; D014481:United States / Q000453:epidemiology