1. The case for inferiorly based posterior pharyngeal flap;Randall;Cleft Palate J,1978
2. The pharyngeal flap operation in cleft palate;Skoog;Br J Plast Surg,1965
3. Secondary techniques for correction of palatopharyngeal incompetence;Yules,1971
4. Correction of poor speech due to a low pharyngeal flap attachment by a V-Y advancement procedure;Hirshowitz;Cleft Palate J,1977
5. Speech result from the high attached pharyngeal flap operation;Owsley;Cleft Palate J,1970