RT Journal Article SR Electronic T1 Haemodynamic calculations in the catheter laboratory JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 113 OP 120 DO 10.1136/heart.85.1.113 VO 85 IS 1 A1 James L Wilkinson YR 2001 UL http://heart.bmj.com/content/85/1/113.abstract AB