RT Journal Article SR Electronic T1 What Do We Mean by “Sterility”? JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 90 OP 92 VO 49 IS 2 A1 John Sharp YR 1995 UL http://journal.pda.org/content/49/2/90.abstract AB