RT Journal Article SR Electronic T1 Strangulated gastric volvulus: an unusual cause of cardiac compression resulting in electromechanical dissociation JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 550 OP 550 DO 10.1136/heart.83.5.550 VO 83 IS 5 A1 P R KALRA A1 R FRYMANN A1 D R ALLEN YR 2000 UL http://heart.bmj.com/content/83/5/550.abstract AB