TI - REferences and reviews PT - JOUR DP - 1969 TA - JAMA pages = {2176-2205}, VI - 208 IP - 11 AID - 10.1001/jama.1969.03160110148043 [doi] 4100 - http://dx.doi.org/10.1001/jama.1969.03160110148043 SO - JAMA June 16, 1969 208(11):2176