TI - REsearch PT - JOUR DP - 2006 TA - JAMA pages = {942-943}, VI - 295 IP - 8 AID - 10.1001/jama.295.8.942 [doi] 4100 - http://dx.doi.org/10.1001/jama.295.8.942 SO - JAMA February 22, 2006 295(8):942