RT Journal
T1 MEdical economics
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1909
FD July 24
VO LIII
IS 4
SP 314
OP 314
DO 10.1001/jama.1909.02550040066025
UL http://dx.doi.org/10.1001/jama.1909.02550040066025
AB