RT Journal
T1 BRazil
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1959
FD August 8
VO 170
IS 15
SP 1832
OP 1832
DO 10.1001/jama.1959.63010150011019
UL http://dx.doi.org/10.1001/jama.1959.63010150011019
AB