RT Journal Article SR Electronic T1 Letters to the Editor JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 230 OP 230 VO 36 IS 5 A1 Michael Anisfeld YR 1982 UL http://journal.pda.org/content/36/5/230.abstract AB