RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1969
FD May 12
VO 208
IS 6
SP 1029
OP 1030
DO 10.1001/jama.1969.03160060099029
UL http://dx.doi.org/10.1001/jama.1969.03160060099029
AB