Fig. 5From: Amorphous calcium phosphate nanoparticles using adenosine triphosphate as an organic phosphorus source for promoting tendon–bone healingRepresentative HE and Safranin-O/fast green staining of the supraspinatus tendon enthesis at 4 and 8 weeks postoperatively. a HE staining. b Safranin-O/fast green staining. B, bone; I, interface; T, tendonBack to article page