1. Diagnostic laryngeal endoscopy;Rosen;Otolaryngol Clin North Am,2000
2. Dynamic assessment using flexible endoscopy;Rosen,1997
3. Vocal-cord dysfunction presenting as asthma;Christopher;N Engl J Med,1983
4. Management of the Voice and Its Disorders;Morrison,2001
5. Vocal fatigue and dysphonia in the professional voice user;Koufman;Laryngoscope,1988