Heads or tails in a positive faecal occult blood test.
Itzkowitz
S H
SH
Dr Henry D Janowitz Division of Gastroenterology, Mount Sinai School of Medicine, New York, NY 10029, USA.
D003110:Colonic Neoplasms / Q000175:diagnosis / Q000453:epidemiology*; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D008875:Middle Aged; D009780:Occult Blood; D011237:Predictive Value of Tests; D014481:United States / Q000453:epidemiology