Chung, Edward K. Cardiac arryhthmias : self-assessment / by Edward K. Chung - Baltimore : The Williams & Wilkins Co., 1977 - 446 p. : ill. ; 21 cm. ISBN: 0683015680 LCCN: 77-004111 Subjects--Topical Terms: Arrhythmia--DiagnosisElectrocardiography National Library of Medicine Call No.: WG18 / .C559c 1977 9