1. Right bony choanal atresia and rhinolith, with nucleus of flint, in the atresic fossa;Vulowitsch;Mschr. Ohrenheilk.,1926
2. Three rhinoliths;Suné Medan;Rev. Laryng.,1923
3. Suné Medan L. , Index Bibliog., 15th 07
4. CONGENITAL ATRESIA OF THE POSTERIOR NARES
5. CONGENITAL ATRESIA OF THE POSTERIOR NARES