RT Journal Article SR Electronic T1 Biological Indicator Comparative Analysis in Various Product Formulations and Closure Sites JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 101 OP 109 VO 54 IS 2 A1 T. J. Berger A1 C. Chavez A1 R. D. Tew A1 F. T. Navasca A1 D. H. Ostrow YR 2000 UL http://journal.pda.org/content/54/2/101.abstract AB