ShaferRaymond P. (Chairman): Drug Use in America: Second Report of the National Commission on Marihuana and Drug Abuse, U.S. Government Printing Office, Washington, D.C. 20402.
2.
KoupJ. R.: Déjà Vu: We Have All Been Here Before: Drug Intell. Clin. Pharm.7: 191(Apr.) 1973.
3.
FlexnerA.: Medical Education in Europe, A Report to the Carnegie Foundation for the Advancement of Teaching, 1912, page 4.