Plasmapheresis grew as a source of plasma and, by 1986/1987, had given rise to just over 10% of the plasma sent to BPL. Linked evidence CBLA0002371 - Blood Products Laboratory and Plasma Fractionation Laboratory Annual Report - 01 Mar 1987 Chronology Information Date: 1 January 1986 1 January 1987 Chapter/issue Blood Products and Addressing Risk: Self-Sufficiency