RT Journal Article SR Electronic T1 Pathergy JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1275 OP 1276 DO 10.1503/cmaj.061527 VO 176 IS 9 A1 Madan, Vishal A1 Lear, John YR 2007 UL http://www.cmaj.ca/content/176/9/1275.abstract