Gastrointestinal disorders in military and civilian life.
R A
RA
SAVITT
D004194:Disease; D005762:Gastroenterology; D005767:Gastrointestinal Diseases; D041981:Gastrointestinal Tract; D006801:Humans; D019369:Life; D008887:Military Medicine; D008889:Military Personnel
GASTROINTESTINAL TRACT/diseases; MILITARY MEDICINE/gastroenterology