AU - Mitka M TI - MIssing property PT - JOUR DP - 2009 TA - JAMA pages = {136}, VI - 302 IP - 2 AID - 10.1001/jama.2009.939 [doi] 4100 - http://dx.doi.org/10.1001/jama.2009.939 SO - JAMA July 8, 2009 302(2):136