research Techniques for Rejuvenation of the Neck Platysma 12 citations , April 2014 in “Facial Plastic Surgery Clinics of North America” Direct excision techniques can rejuvenate the neck but may not enhance the jawline and could cause neck-face disharmony if done incorrectly.
research Poster 252 Patient Registry of Outcomes in Spasticity Care September 2011 in “PM&R” The data suggests that dosing differences can help manage spasticity in patients with upper motor neuron dysfunction.