Fig. 1From: Ultrasound-guided five-point injection of botulinum toxin for patients with trapezius hypertrophyMeasurement of muscle thickness and labeling of botulinum toxin type A (BOTOX) injected points. a, b The muscle thickness was measured by using the ultrasound scanner Esaote MyLab Twice; c the five points at left trapezius muscle for BOTOX administration; d the five points at right trapezius muscle for BOTOX administrationBack to article page