Fig. 4From: Healing of rotator cuff tendons using botulinum toxin A and immobilization in a rat modelComparison of photomicrographs. a Non-immobilized saline control. b Botox 6 U/kg alone. c Cast alone. Masson’s trichrome blue stain (original magnification, 10×) of scar at 4 weeks shows a disorganized scar for the non-immobilized control and a more organized scar for the Botox-only and cast-only specimens. Rectangles indicate regions of interestBack to article page