JacksonChevalier: Peroral Endoscopy and Laryngeal Surgery. Laryngoscope Co., St. Louis, 1915.
2.
JacksonChevalierJacksonChevalier L.: The Larynx and Its Diseases. W. B. Saunders Co., Philadelphia and London, 1937.
3.
TuckerG.: Laryngoptosis: Ptosis of the Larynx Due to Downward Displacement of the Hyoid Bone Resulting from Fibro Stenosis and Shortening (Congenital Anomaly) of the Left Sternothyroid Muscles. Arch. Otolaryng., 25:389 (April), 1937.