RT Journal A1 Poirier S T1 LIterature and medicine JF JAMA JO JAMA YR 1989 FD November 3 VO 262 IS 17 SP 2382 OP 2382 DO 10.1001/jama.1989.03430170040013 UL http://dx.doi.org/10.1001/jama.1989.03430170040013 AB