University of Zambia Library Search for 'au:"Ringqvist, Ivar."'

Ambulatory electrocardiographic recording /

Chicago : Year Book Medical Publishers, 1981 . xx, 456 p. : ill. ; 24 cm. xx, 456 p. : ill. ; 24 cm..

Chicago : Year Book Medical Publishers, 1981 . xx, 456 p. : ill. ; 24 cm. xx, 456 p. : ill. ; 24 cm..

Chicago : Year Book Medical Publishers, 1981 . xx, 456 p. : ill. ; 24 cm. xx, 456 p. : ill. ; 24 cm..