PT - JOURNAL ARTICLE AU - S. Aquino AU - N. Quach AU - C. Richardson AU - C. McDonald TI - LETTERS TO THE EDITOR DP - 1990 Mar 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 48--49 VI - 44 IP - 2 4099 - http://journal.pda.org/content/44/2/48.short 4100 - http://journal.pda.org/content/44/2/48.full SO - PDA J Pharm Sci Technol1990 Mar 01; 44