RT Journal A1 Bergen RP T1 LAw and medicine JF JAMA JO JAMA YR 1969 FD February 10 VO 207 IS 6 SP 1231 OP 1232 DO 10.1001/jama.1969.03150190135040 UL http://dx.doi.org/10.1001/jama.1969.03150190135040 AB