PT - JOURNAL ARTICLE AU - Schroeder, Hans G. TI - Letter to the Editor DP - 1984 Jul 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 164--164 VI - 38 IP - 4 4099 - http://journal.pda.org/content/38/4/164.short 4100 - http://journal.pda.org/content/38/4/164.full SO - PDA J Pharm Sci Technol1984 Jul 01; 38