Physique and serum pepsinogen.
D000293:Adolescent; D000328:Adult; D001824:Body Constitution; D004792:Enzyme Precursors / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008889:Military Personnel; D009787:Occupational Medicine; D010434:Pepsin A / Q000032:analysis*; D010437:Peptic Ulcer / Q000378:metabolism; D014481:United States
D004792:Enzyme Precursors; D010434:Pepsin A