RT Journal T1 CUrrent comment JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1926 FD October 9 VO 87 IS 15 SP 1218 OP 1219 DO 10.1001/jama.1926.02680150052015 UL http://dx.doi.org/10.1001/jama.1926.02680150052015 AB