RT Journal Article SR Electronic T1 LETTER TO THE EDITOR JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 70 OP 70 VO 45 IS 2 A1 Spender, M. YR 1991 UL http://journal.pda.org/content/45/2/70.abstract AB