TI - ABout this journal PT - JOUR DP - 2013 TA - JAMA pages = {519}, VI - 309 IP - 6 AID - 10.1001/jama.309.6.519 [doi] 4100 - http://dx.doi.org/10.1001/jama.309.6.519 SO - JAMA February 13, 2013 309(6):519