Allergy Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran;
Endoscopic & Minimally Invasive Surgery Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran;
Kidney Transplantation Complications Research Center, Department of Internal Medicine, Ghaem Hospital, School of Medicine, Mashhad Uni-versity of Medical Sciences, Mashhad, Iran;
Rheumatic Disease Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran;
Acquired; von; Willebrand; Disease; Lupus; Erythematosus; Systemic; rFVIIa; Bleeding;