RT Journal Article SR Electronic T1 Dermacase. Henoch-Schönlein purpura. JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 511 OP 512 VO 51 IS 4 A1 Anatoli Freiman YR 2005 UL http://www.cfp.ca/content/51/4/511.abstract AB