TI  - MEdical literature abstracts
PT  - JOUR
DP  - 1957
TA  - Journal of the American Medical Association
pages = {489-502},
VI  - 164
IP  - 4
AID  - 10.1001/jama.1957.02980040129032 [doi]
4100  - http://dx.doi.org/10.1001/jama.1957.02980040129032
SO  - Journal of the American Medical Association May 25, 1957 164(4):489