RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1969
FD January 13
VO 207
IS 2
SP 374
OP 375
DO 10.1001/jama.1969.03150150086047
UL http://dx.doi.org/10.1001/jama.1969.03150150086047
AB