In the June 2007 edition of the journal Otolaryngology-Head & Neck Surgery, Dr. Chang's original research has been published. The title of the paper is "Relationship of botulinum dosage to duration of side effects and normal voice in adductor spasmodic dysphonia." Click here to read the abstract.
Dr. Chang treats patients with spasmodic dysphonia using BOTOX every Friday afternoon. To watch a video of how exactly her performs this procedure in a patient, click here.
Books on voice therapy found to be a useful ADJUNCT to botox injections: