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2. Die Verletzungen der Frontzahne bei Jugendlichen;Eschler,1972
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4. The traumatized tooth: a synthesis;Natkin;Oral Surg,1972
5. Andreasen, J.O. The effect of extraalveolar period and storage media upon periodontal and pulpal healing after replantation of mature permanent incisors in monkeys. Int J Oral Surg, to be published.