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3. Gax-collagen injection to correct aspiration problems after subtotal laryngectomy;Remacle;Laryngoscope,1990
4. The use of injectable collagen to correct velopharyngeal insufficiency;Remacle;Laryngoscope,1990
5. Gax-collagen injection to correct an enlarged tracheo-oesophageal fistula for a vocal prosthesis;Remacle;Laryngoscope,1988