RT Journal Article SR Electronic T1 Copy-number variations add a new layer of complexity in the human genome JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 441 OP 442 DO 10.1503/cmaj.061689 VO 176 IS 4 A1 Robert A. Hegele YR 2007 UL http://www.cmaj.ca/content/176/4/441.abstract