RT Journal Article SR Electronic T1 Instantaneous pressure–flow velocity relations of systemic venous return in patients with univentricular circulation JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 582 OP 582 DO 10.1136/heart.83.5.582b VO 83 IS 5 A1 HSIA, T-Y A1 KHAMBADKONE, S A1 REDINGTON, A N A1 DE LEVAL, M R YR 2000 UL http://heart.bmj.com/content/83/5/582.4.abstract AB