RT Journal T1 PHarmacology JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1909 FD October 30 VO LIII IS 18 SP 1496 OP 1499 DO 10.1001/jama.1909.02550180054010 UL http://dx.doi.org/10.1001/jama.1909.02550180054010 AB