Reference
- Friede H., Johanson B. A Follow up Study of Cleft Children treated with Primary Bonegrafting; Orthodontic Aspects. Paper presented at the 2nd International Congress on Cleft Palate. Copenhagen 1973
- van Limborgh J. Some aspects of the development of the cleft-affected face. Early treatment of cleft lip and palate. Int Symp Zurich, Huber (ed.), Bern 1964
- Robertson N. R. E., Jolleys A. A study of the effects of early bonegrafting in complete clefts of the lip and palate. Brit J Plast Surg 1971; 40: 229
- Schmid E., Widmaier W., Reichert H., Stein K. The Development of the Upper Jaw after Primary Osteoplasty. Paper presented at the 2nd International Congress on Cleft Palate. Copenhagen 1973
- Urbanus N. A. M. Skull Growth after Closure of Artificial Clefts of Lip, Alveolus and Palate. An Experimental Study on the Effects of Some Surgical Methods in the Rabbit. Thesis, University of Amsterdam. 1974
- Verwoerd-Verhoef H. L. The Influence of Artificial Clefts on the Growth of the Skull in Young Rabbits. Thesis, University of Amsterdam. 1974