RT Journal Article SR Electronic T1 A Multinational Effort JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 47 OP 47 VO 44 IS 2 A1 J. B. Schwartz YR 1990 UL http://journal.pda.org/content/44/2/47.abstract AB