TI  - STudies on the changing incidence of peptic ulcer of the stomach and duodenum
PT  - JOUR
DP  - 1939
TA  - Journal of the American Medical Association
pages = {1834},
VI  - 113
IP  - 20
AID  - 10.1001/jama.1939.02800450056030 [doi]
4100  - http://dx.doi.org/10.1001/jama.1939.02800450056030
SO  - Journal of the American Medical Association November 11, 1939 113(20):1834