PT - JOURNAL ARTICLE AU - Hans G. Schroeder TI - Letter to the Editor DP - 1985 Mar 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 101--101 VI - 39 IP - 2 4099 - http://journal.pda.org/content/39/2/101.short 4100 - http://journal.pda.org/content/39/2/101.full SO - PDA J Pharm Sci Technol1985 Mar 01; 39