TY - JOUR T1 - LETTERS TO THE EDITOR JF - PDA Journal of Pharmaceutical Science and Technology JO - PDA J Pharm Sci Technol SP - 48 LP - 49 VL - 44 IS - 2 AU - S. Aquino AU - N. Quach AU - C. Richardson AU - C. McDonald Y1 - 1990/03/01 UR - http://journal.pda.org/content/44/2/48.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -