1. Toxicological studies;Boyd;J. New Drugs,1961
2. Toxicity tests: a guide for clinicians;Paget;J. New Drugs,1962
3. The acute oral toxicity of benzylpenicillin potassium;Boyd;Arch. internat. pharmacodyn.,1960
4. The acute oral toxicity of benzylpenicillin potassium in guinea pigs;Boyd;Antibiot. & Chemother.,1960