1. Office examination of palatopharyngeal function;Bloomer;Clin. Pediatr.,1968
2. Variations in velopharyngeal valving: the factor of vowel change;Bzock;Cleft Palate J.,1968
3. Movements of the soft palate;Calnan;Br. J. Plastic Surgery,1953
4. Palatopharyngeal incompetence in speech;Calnan,1961
5. Hypernasal voice as an indication of regional growth and development disturbances;Fletcher;LOGOS,1960