Fig. 6
From: Effect of melatonin on passive, ex-vivo biomechanical behavior of lamb esophagus
Collagen content in control (CN) and melatonin-treated (MN) groups. Representative histological sections of the (a) submucosa layer and (b) muscularis externa layer stained with Hematoxylin-Eosin (H&E) (mean ± SD). Pink collagen (arrows) fibers are visible in both the submucosa and muscularis externa layers.
