RT Journal Article SR Electronic T1 Variability in the Data Generated by Laboratories Measuring D-Values of Bacterial Spores JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 3 OP 9 VO 59 IS 1 A1 I. J. Pflug YR 2005 UL http://journal.pda.org/content/59/1/3.abstract AB