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XXIII. Concerning his method for protection of the perineum
Ritgen, Geheimrat v.Volume:
93
Language:
english
Journal:
American Journal of Obstetrics and Gynecology
DOI:
10.1016/0002-9378(65)90072-4
Date:
October, 1965
File:
PDF, 1.27 MB
english, 1965