RT Journal
T1 SElected abstracts
JF JAMA
JO JAMA
YR 1979
FD June 1
VO 241
IS 22
SP 2444
OP 2447
DO 10.1001/jama.1979.03290480072041
UL http://dx.doi.org/10.1001/jama.1979.03290480072041
AB