TI  - GOvernment services
PT  - JOUR
DP  - 1939
TA  - Journal of the American Medical Association
pages = {2434},
VI  - 113
IP  - 27
AID  - 10.1001/jama.1939.02800520057016 [doi]
4100  - http://dx.doi.org/10.1001/jama.1939.02800520057016
SO  - Journal of the American Medical Association December 30, 1939 113(27):2434