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[Charge conformity and biopharmaceutic characterization. St. John's Wort extract preparations in comparison]

Wurglics M, Schubert-Zsilavecz M.

Institut f�r Pharmazeutische Chemie, J.W. Goethe-Universit�t Frankfurt/Main Marie-Curie-Strasse 9, D-60439 Frankfurt/Main. [email protected]