TY  - JOUR
T1  - INdex to advertisers
Y1  - 1989/07/21
N1  - 10.1001/jama.1989.03430030126059
JO  - JAMA
SP  - 438
EP  - 438
VL  - 262
IS  - 3
N2  - 
SN  - 0098-7484
M3  - doi: 10.1001/jama.1989.03430030126059
UR  - http://dx.doi.org/10.1001/jama.1989.03430030126059
ER  -