RT Journal Article SR Electronic T1 Bacterial Retention Mechanisms of Membrane Filters JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 30 OP 34 VO 50 IS 1 A1 Masako Osumi A1 Naoko Yamada A1 Mida Toya YR 1996 UL http://journal.pda.org/content/50/1/30.abstract AB