AU - Smith JM TI - SPatio-temporal composition no. 31 PT - JOUR DP - 2013 TA - JAMA pages = {116}, VI - 309 IP - 2 AID - 10.1001/jama.2012.176132 [doi] 4100 - http://dx.doi.org/10.1001/jama.2012.176132 SO - JAMA January 9, 2013 309(2):116