AU  - Marwick C
TI  - HIb vaccine efficacy trials continue; data needed about use in younger children
PT  - JOUR
DP  - 1989
TA  - JAMA
pages = {2015-2019},
VI  - 261
IP  - 14
AID  - 10.1001/jama.1989.03420140015004 [doi]
4100  - http://dx.doi.org/10.1001/jama.1989.03420140015004
SO  - JAMA April 14, 1989 261(14):2015