AU  - Torpy JM
TI  - SPring
PT  - JOUR
DP  - 2009
TA  - JAMA
pages = {1102},
VI  - 301
IP  - 11
AID  - 10.1001/jama.2009.221 [doi]
4100  - http://dx.doi.org/10.1001/jama.2009.221
SO  - JAMA March 18, 2009 301(11):1102