RT Journal
T1 INdex to advertisers
JF JAMA
JO JAMA
YR 1989
FD June 2
VO 261
IS 21
SP 3198
OP 3198
DO 10.1001/jama.1989.03420210148039
UL http://dx.doi.org/10.1001/jama.1989.03420210148039
AB