@book{14092,
	author = {Mason, J. K.},
	title = {The troubled pregnancy :},
	publisher = {Cambridge University Press,},
	year = {c2007.},
	address = {Cambridge :},
	note = {Includes bibliographical references (p. 303-311) and index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0805/2007282164-b.html}
}