Jack B. Fu, MD on Twitter: "Headmaster cervical collars were used by 62% of Hodgkin lymphoma dropped head syndrome patients for over 6 months. Potentially useful for several hours a day." / Twitter
Headmaster Collar - Authorized USA Distributor & Free Shipping
Headmaster Cervical Collar - Small - Walmart.com
Headmaster Collars and Accessories | eBay
Headmaster Collar Anterior Support - Makes Collar More Rigid