Keats, Theodore E. Atlas of normal roentgen variants that may simulate disease / Theodore E. Keats, Mark W. Anderson. - 7th ed. - St. Louis, Mo. : Mosby, 2001 - xx, 1207 p. : chiefly ill. 32 cm. Includes index. ISBN: 9780323013222;0323013228 Subjects--Topical Terms: ArtifactsDiagnostic ErrorsRadiography National Library of Medicine Call No.: WN 17 / .K43 2001