RT Journal Article SR Electronic T1 Voluntary Standards—The USP and the PDA JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 425 OP 426 VO 34 IS 6 A1 Schmitz, Andrew J. YR 1980 UL http://journal.pda.org/content/34/6/425.abstract AB