RT Journal Article SR Electronic T1 PDA Comments on Proposed Rule: Supplements and Other Changes to an Approved Application JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 273 OP 275 VO 53 IS 5 A1 PDA, Inc. YR 1999 UL http://journal.pda.org/content/53/5/273.abstract AB