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 2 OP 3 VO 46 IS 1 A1 J. E. Akers A1 J. P. Agalloco YR 1992 UL http://journal.pda.org/content/46/1/2.abstract AB