RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1989
FD October 6
VO 262
IS 13
SP 1854
OP 1855
DO 10.1001/jama.1989.03430130130047
UL http://dx.doi.org/10.1001/jama.1989.03430130130047
AB