Health and Human Services Secretary Robert F ... This first-line treatment for dysphonia helps to weaken the vocal folds that contract abnormally with this condition. He used botulinum toxin ...

What they’re finding upends conventional wisdom on vocal health and could open new avenues of speech treatment ... where passing air vibrates two muscular “true” vocal folds, creating sound; and the ...

This first-line treatment for dysphonia helps to weaken the vocal folds that contract abnormally with this condition. He used botulinum toxin injections for 10 years and then stopped using them ...