RT Journal
T1 SElected abstracts
JF JAMA
JO JAMA
YR 1979
FD December 14
VO 242
IS 24
SP 2716
OP 2719
DO 10.1001/jama.1979.03300240054036
UL http://dx.doi.org/10.1001/jama.1979.03300240054036
AB