TY - BOOK AU - Kremkau,Frederick W. AU - Forsberg,Flemming AU - Kremkau,Frederick W. TI - Sonography principles and instruments SN - 9781437709803 (hbk. : alk. paper) PY - 2011/// CY - St. Louis, Mo. PB - Elsevier/Saunders KW - Ultrasonography N1 - Rev. ed. of: Diagnostic ultrasound / Frederick W. Kremkau. 7th ed. c2006; Includes bibliographical references and index; Introduction -- Ultrasound -- Transducers -- Instruments -- Doppler principles -- Artifacts -- Performance and safety -- Review ER -