TI  - HAve you had your vitamins?
PT  - JOUR
DP  - 1939
TA  - Journal of the American Medical Association
pages = {1531},
VI  - 112
IP  - 15
AID  - 10.1001/jama.1939.02800150103034 [doi]
4100  - http://dx.doi.org/10.1001/jama.1939.02800150103034
SO  - Journal of the American Medical Association April 15, 1939 112(15):1531