1. Preliminary Report of Studies on the Nasopharynx;McCarthy;Ann. Otol. Rhin. & Laryng,1925
2. The Significance of Variation in the Cranial Base and Soft Structures;Ricketts;Newsletter Am. A. Cleft Palate Rehab,1952
3. An X-ray Study of Cleft Palate, Oral, and Pharyngeal Structures and Their Function During Vowel Phonation;McKenzie;Newsletter Am. A. Cleft Palate Rehab,1952
4. X-ray Examination of Deformities of the Nasopharynx;Schüller;Ann. Otol. Rhin. & Laryng,1929
5. Children With Cleft Palate and Cleft Lip;Backus,1950