RT Journal
T1 QUestions and answers
JF JAMA
JO JAMA
YR 1979
FD January 12
VO 241
IS 2
SP 171
OP 172
DO 10.1001/jama.1979.03290280051033
UL http://dx.doi.org/10.1001/jama.1979.03290280051033
AB