RT Journal A1 Bergen RP T1 LAw and medicine JF JAMA JO JAMA YR 1969 FD June 2 VO 208 IS 9 SP 1759 OP 1760 DO 10.1001/jama.1969.03160090097038 UL http://dx.doi.org/10.1001/jama.1969.03160090097038 AB