RT Journal Article SR Electronic T1 Stiff heart syndrome JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1690 OP 1691 VO 168 IS 13 A1 Sandeep Arora A1 Anju Arora A1 Ravinder P.S. Makkar A1 Amitabh Monga YR 2003 UL http://www.cmaj.ca/content/168/13/1690.abstract