RT Journal Article SR Electronic T1 Preservative Efficacy: Compendial and Regulatory Issues JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 187 OP 190 VO 43 IS 4 A1 Murray S. Cooper YR 1989 UL http://journal.pda.org/content/43/4/187.abstract AB