RT Journal Article SR Electronic T1 Unusual variation in upper-body venous anatomy found with cardiovascular MRI JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 27 OP 27 DO 10.1503/cmaj.060166 VO 175 IS 1 A1 Marcu, Constantin B. A1 Beek, Aernout M. A1 van Rossum, Albert C. YR 2006 UL http://www.cmaj.ca/content/175/1/27.abstract