a logical approach John P. McGahan (editor) Barry B. Goldberg (editor) creator text Philadelphia Lippincott-Raven 1998 monographic xxi, 1288 p. : ill. (col.) ; 28 cm. Ultrasonics in obstetrics Diagnostic ultrasound Trimester ultrasound Fetal heart Fetal measurements PRH 616.07543 DIA 0397516142 (hb)