They were mounted on glass microscope slides (Superfrost TM /Plus ... Germany), botulinum toxin type C3 from Pharm-Allergan GmbH (Ettlingen, Germany), and Krebs-Ringer (KR) solution from PAA ...
Sections 4 μm in thickness were cut from samples embedded in Tissue-Tek OCT (Skura Finetek, Torrance, California), and were mounted on gelatin-coated glass microscope slides and stained by a ...