PT - JOURNAL ARTICLE AU - William A. Hyde TI - Origin of Bacteria in the Clean Room and Their Growth Requirements DP - 1998 Jul 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 154--158 VI - 52 IP - 4 4099 - http://journal.pda.org/content/52/4/154.short 4100 - http://journal.pda.org/content/52/4/154.full SO - PDA J Pharm Sci Technol1998 Jul 01; 52