RT Journal
T1 NOvember 24, 1999
JF JAMA
JO JAMA
YR 1999
FD November 24
VO 282
IS 20
SP 1979
OP 1980
DO 10.1001/jama.282.20.1979
UL http://dx.doi.org/10.1001/jama.282.20.1979
AB