PEPTIC PERFORATION AT SEA.
D000005:Abdomen; D000006:Abdomen, Acute; D001315:Australia; D003937:Diagnosis, Differential; D006801:Humans; D009326:Naval Medicine; D010439:Peptic Ulcer Perforation; D011315:Preventive Medicine
ABDOMEN, ACUTE; AUSTRALIA; DIAGNOSIS, DIFFERENTIAL; NAVAL MEDICINE; PEPTIC ULCER PERFORATION; PREVENTIVE MEDICINE