PT - JOURNAL ARTICLE AU - Schwartz, J. B. TI - Commentary, Opinion, and PDA Positions DP - 1991 May 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 117--117 VI - 45 IP - 3 4099 - http://journal.pda.org/content/45/3/117.short 4100 - http://journal.pda.org/content/45/3/117.full SO - PDA J Pharm Sci Technol1991 May 01; 45