PT - JOURNAL ARTICLE AU - J. Sharp TI - LETTER TO THE EDITOR DP - 1993 Jan 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 2--3 VI - 47 IP - 1 4099 - http://journal.pda.org/content/47/1/2.short 4100 - http://journal.pda.org/content/47/1/2.full SO - PDA J Pharm Sci Technol1993 Jan 01; 47