TI - REferences and reviews PT - JOUR DP - 1969 TA - JAMA pages = {2106-2133}, VI - 210 IP - 11 AID - 10.1001/jama.1969.03160370090043 [doi] 4100 - http://dx.doi.org/10.1001/jama.1969.03160370090043 SO - JAMA December 15, 1969 210(11):2106