RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1989
FD September 22
VO 262
IS 12
SP 1696
OP 1696
DO 10.1001/jama.1989.03430120150039
UL http://dx.doi.org/10.1001/jama.1989.03430120150039
AB