RT Journal T1 MEdical education, registration and hospital service JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1919 FD October 25 VO 73 IS 17 SP 1304 OP 1305 DO 10.1001/jama.1919.02610430052031 UL http://dx.doi.org/10.1001/jama.1919.02610430052031 AB