TI - MEdical news PT - JOUR DP - 1969 TA - JAMA pages = {1441-1456}, VI - 207 IP - 8 AID - 10.1001/jama.1969.03150210025005 [doi] 4100 - http://dx.doi.org/10.1001/jama.1969.03150210025005 SO - JAMA February 24, 1969 207(8):1441