RT Journal
T1 MEdical economics
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1909
FD October 9
VO LIII
IS 15
SP 1215
OP 1216
DO 10.1001/jama.1909.02550150071032
UL http://dx.doi.org/10.1001/jama.1909.02550150071032
AB