Spasmodic dysphonia: description of the disease and associated neurologic disorders
Introduction: Spasmodic dysphonia (SD) is a problem that affects speech and vocalization, one of the most devastating disorders of oral communication.It is characterized by vocal quality tensaestrangulada, harshly and / or interspersed with abrupt vocal attack and a great tension in the vocal tract.The etiology of spasmodic dysphonia is unclear.Som