TY  - JOUR
T1  - QUestions and answers
Y1  - 1989/01/20
N1  - 10.1001/jama.1989.03420030121045
JO  - JAMA
SP  - 447
EP  - 448
VL  - 261
IS  - 3
N2  - 
SN  - 0098-7484
M3  - doi: 10.1001/jama.1989.03420030121045
UR  - http://dx.doi.org/10.1001/jama.1989.03420030121045
ER  -