TI  - MAdrid letter
PT  - JOUR
DP  - 1919
TA  - Journal of the American Medical Association
pages = {1074-1075},
VI  - 73
IP  - 14
AID  - 10.1001/jama.1919.02610400052024 [doi]
4100  - http://dx.doi.org/10.1001/jama.1919.02610400052024
SO  - Journal of the American Medical Association October 4, 1919 73(14):1074