RT Journal
T1 JAnuary 13, 1999
JF JAMA
JO JAMA
YR 1999
FD January 13
VO 281
IS 2
SP 203
OP 204
DO 10.1001/jama.281.2.203
UL http://dx.doi.org/10.1001/jama.281.2.203
AB