RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1989
FD August 18
VO 262
IS 7
SP 953
OP 956
DO 10.1001/jama.1989.03430070101043
UL http://dx.doi.org/10.1001/jama.1989.03430070101043
AB