RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1989
FD August 11
VO 262
IS 6
SP 834
OP 834
DO 10.1001/jama.1989.03430060134040
UL http://dx.doi.org/10.1001/jama.1989.03430060134040
AB