Williamson, Susan L. Primary pediatric radiology / Susan L. Williamson - Philadelphia : W. B. Saunders, 2002 - 246 p. : ill. ; 27 cm. ISBN: 0721641806 RM200.60 Subjects--Topical Terms: Radiography--childRadiography--infantUltrasonography--childUltrasonography--infant National Library of Medicine Call No.: WN240