Chudleigh, Patricia. Obstetric ultrasound : how, why and when / Patricia Chudleigh, J. Malcolm Pearce ; foreword by Stuart Campbell. - 2nd ed. - Edinburgh : Churchill Livingstone , 1997. - 323 p. : ill. ; 25 cm. ISBN: 0443042071 RM216.94 Subjects--Topical Terms: Pregnancy Complications--ultrasonographyPrenatal Diagnosis--methods National Library of Medicine Call No.: WQ209