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4. Transvaginal Regional Anesthesia Simplified by a New Instrument;Kobak;Obst. & Gynec.,1960
5. Kobak, A. J. and Sadove, M. S.: Combined Paracervical and Pudendal Nerve Blocks. A Simplified Form of Transvaginal Anesthesia. To be published by Am. J. Obst. & Gynec.