TI - REferences and reviews PT - JOUR DP - 1969 TA - JAMA pages = {2350-2372}, VI - 208 IP - 12 AID - 10.1001/jama.1969.03160120074031 [doi] 4100 - http://dx.doi.org/10.1001/jama.1969.03160120074031 SO - JAMA June 23, 1969 208(12):2350