PT - JOURNAL ARTICLE AU - PDA, Inc. TI - PDA Comments on Proposed Rule: Supplements and Other Changes to an Approved Application DP - 1999 Sep 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 273--275 VI - 53 IP - 5 4099 - http://journal.pda.org/content/53/5/273.short 4100 - http://journal.pda.org/content/53/5/273.full SO - PDA J Pharm Sci Technol1999 Sep 01; 53