PT - JOURNAL ARTICLE AU - Letters TI - LETTERS TO THE EDITOR DP - 1996 Jan 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 2--5 VI - 50 IP - 1 4099 - http://journal.pda.org/content/50/1/2.short 4100 - http://journal.pda.org/content/50/1/2.full SO - PDA J Pharm Sci Technol1996 Jan 01; 50