1. Palliative Intubation of the Esophagus for Malignant Disease;Berg;Surg., Gynec. & Obst.,1963
2. A Comparative Study of the Palliative Results of the Indwelling Esophageal Tube;Bestler;Laryngoscope,1966
3. Use of the Celestin Indwelling Plastic Tube for Inoperable Carcinoma of the Esophagus and Cardia;Carter;Surg., Gynec. & Obst.,1963
4. Inoperable Carcinoma of the Esophagus and Cardia: Permanent Intubation With the Celestin Tube;Fortin;Canad. J. Surg.,1965
5. Palliation in Malignant Stricture of the Esophagus;Moghissi;Lancet,1960