RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1989
FD January 6
VO 261
IS 1
SP 105
OP 109
DO 10.1001/jama.1989.03420010117047
UL http://dx.doi.org/10.1001/jama.1989.03420010117047
AB