RT Journal
T1 INdex to advertisers
JF JAMA
JO JAMA
YR 1989
FD July 14
VO 262
IS 2
SP 314
OP 314
DO 10.1001/jama.1989.03430020156059
UL http://dx.doi.org/10.1001/jama.1989.03430020156059
AB