1. Singer, M. I. and Blom, E. D.: Tracheoesophageal Puncture: A Surgical Prosthetic Method for Postlaryngectomy Speech Restoration. Read Before the Third International Symposium on Plastic and Reconstructive Surgery of the Head and Neck, New Orleans, April 29-May 4, 1979.
2. Prosthetic Vocal Rehabilitation Following Laryngectomy: The Voice Button;Panje;Ann. Otol. Rhinol. Laryngol.,1981