Social medicine studies based on civilian medical board records.  IV.  Occupational and physical characteristics of men with certain digestive disorders.
D001064:Appendicitis / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008499:Medical Records; D008511:Medicine; D010437:Peptic Ulcer / Q000706:statistics & numerical data*; D010808:Physical Examination; D012936:Social Medicine
APPENDICITIS/statistics; PEPTIC ULCER/statistics