Nonrenal disease activity following mycophenolate mofetil or intravenous cyclophosphamide as induction treatment for lupus nephritis: Findings in a multicenter, prospective, randomized, open-label, parallel-group clinical trial. - Ginzler EM; Wofsy D; Isenberg D; Gordon C; Lisk L; Dooley MA; ALMS Group (Arthritis & Rheumatism, 2010)