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2. “The Queen Charlotte's Textbook of Obstetrics” Sixth Edition.
3. DeLee J. B. andGreenhill J. P.(1943) “Principles and Practice of Obstetrics” Eighth Edition.
4. Irving F. E.(1943) “Normal and Abnormal Obstetrics” First Edition.
5. Acute Intestinal Obstruction Complicating Pregnancy and Post‐partum Period with Report of Four Cases;Weintraub F.;The American. Journal of Obstetrics and Gynecology,1940