PT - JOURNAL ARTICLE AU - Gordon R. Personeus TI - Regulatory Requirements for Supplemental Applications: The “Grey” Area DP - 1989 May 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 114--116 VI - 43 IP - 3 4099 - http://journal.pda.org/content/43/3/114.short 4100 - http://journal.pda.org/content/43/3/114.full SO - PDA J Pharm Sci Technol1989 May 01; 43