Fig. 3
From: The role of nicotinic receptors in SARS-CoV-2 receptor ACE2 expression in intestinal epithelia
Hematoxylin-eosin (HE) staining of vagus nerve. Image of representative cross-sectioned HE of electrode implanted vagus nerve of VNS-treated mouse (scale bar: 100 μm). White circle indicates the (expected) place of the cuff, that was cleared by sectioning