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DTW. Deutsche Tierarztliche Wochenschrift|February 1, 1989
[Preservation by deep freezing of oocytes and embryos]K Bürkle, J HahnJournal of Maxillofacial Surgery|May 1, 1979
Concept of cytostatic therapy in advanced tumours of the head and neckH Matras, K Bürkle, G Watzek, et al.Pageof 1