1. Birth prevalence of different congenital limb deficiency types in a populationbased revised Hungarian material 1975-1984;Czeizel, A.; Vitez, M.; Kodaj, I.; Lenz, W.;Acta Morphol Hung,1991
2. Congenital deformities of the upper extremities;Al, Birch-Jensen,1949
3. Multiple congenital abnormalities;Czeizel, A.; Telegdi, L.; Tusnady, G.,1988
4. Grundsatzlicher uber die Beurteilung der Entstehung und Bewertung atypischer Handund Fussmissbildungen;Lange, M.;Z Orthop,1937
5. Congenital abnormalities associated with limb reduction deficiencies: a populationbased Hungarian study;Evans, J.A.; Vitez, M.; Czeizel, A.,1975