1. STUDIES IN THE DETERIORATION OF AQUEOUS SOLUTIONS AND DISPERSIONS OF PROCAINE BENZYLPENICILLIN
2. Higuchi, T., School of Pharmacy, University of Wisconsin, Madison, private communication.
3. Compilation of Regulations for Tests and Methods of Assay and Certification of Antibiotics and Antibiotic- Containing Drugs, U. S. Department of Health, Education and Welfare, Pood and Drug Administration. Section 141a.1, page A-l