AU  - KAUFMAN P
TI  - Pneumonia in old age: Active immunization against pneumonia with pneumococcus polysaccharide; results of a six year study
PT  - JOUR
DP  - 1947
TA  - Archives of Internal Medicine
pages = {518-531},
VI  - 79
IP  - 5
AID  - 10.1001/archinte.1947.00220110058004 [doi]
4100  - http://dx.doi.org/10.1001/archinte.1947.00220110058004
SO  - Archives of Internal Medicine May 1, 1947 79(5):518