1. The Clinical Trial;Hill;New England J. Med.,1952
2. Clinical Therapeutic Trial of a New Drug;Marshall;Bull. Johns Hopkins Hosp.,1949
3. Clinical Pharmacology;Gaddum,1954
4. Experimental Pharmacology and Measurement of the Subjective Response;Beecher;Science,1952
5. “Student”: The Lanarkshire Milk Experiment;Biometrika,1931