H&E-staining
Samples were embedded in tissue freezing medium (Leica Biosystems,
Germany) and 7 μm sections were made using a CryoStar™ NX70 Kryostat
(Thermo Fisher, USA). The resulting sections were stained with H&E
according to standard protocols. For morphometric analysis, images were
captured at 200× magnifications using a light DMI8-Microscope (Leica,
Germany).