Institution: | (1) Exploratory Pharmaceutical Development, Merck KGaA, Frankfurter Stra?e 250, 64293 Darmstadt, Germany;(2) Center for Electron Microscopy at the Institute for Anatomy, University of Regensburg, Universit?tsstrasse 31, 93040 Regensburg, Germany;(3) Department of Pharmaceutical Technology, University of Regensburg, Universit?tsstrasse 31, 93040 Regensburg, Germany;(4) Dept. of Pharmacy, Pharmaceutical Technology & Biopharmaceutics, Ludwig Maximilians University, 81377 Munich, Germany; |