RT Journal
T1 SElected abstracts
JF JAMA
JO JAMA
YR 1979
FD November 16
VO 242
IS 20
SP 2238
OP 2241
DO 10.1001/jama.1979.03300200062038
UL http://dx.doi.org/10.1001/jama.1979.03300200062038
AB