TI  - Missing letter grouping title in: May 2, 2012, issue of jama
PT  - JOUR
DP  - 2012
TA  - JAMA
pages = {2150},
VI  - 307
IP  - 20
AID  - 10.1001/jama.2012.5321 [doi]
4100  - http://dx.doi.org/10.1001/jama.2012.5321
SO  - JAMA May 23, 2012 307(20):2150