TI  - PRogress toward global polio eradication—africa, 2011
PT  - JOUR
DP  - 2012
TA  - JAMA
pages = {2018-2020},
VI  - 307
IP  - 19
AID  -  [doi]
4100  - http://dx.doi.org/
SO  - JAMA May 16, 2012 307(19):2018