@book{9305,
	author = {Beckmann, Charles R. B....[et al] and American College of Obstetrics and Gynecology (ACOG)},
	title = {Obstetrics and  gynecology},
	publisher = {Lippincott Williams & Wilkins; },
	year = {2010},
	address = {Philadelphia :},
	edition = {6th ed},
	note = {Includes bibliographical references and index}
}