PT - JOURNAL ARTICLE AU - Julius Z. Knapp TI - Particulate Measurements: Perspectives DP - 1990 Jul 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 184--184 VI - 44 IP - 4 4099 - http://journal.pda.org/content/44/4/184.short 4100 - http://journal.pda.org/content/44/4/184.full SO - PDA J Pharm Sci Technol1990 Jul 01; 44