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Langenbecks Archiv Fur Chirurgie|November 15, 1976
[Reintervention in recurrent carcinoma of the large bowel (author's transl)]P Kempf, C P EhlertZeitschrift Fur Gastroenterologie|February 1, 1977
[Iatrogenic injuries of the human bile duct]C P Ehlert, H D SchmidtPageof 1