Md Noh, U. K., A. Z. A. Zahidin, and T. K. Yong. “Retinal Vasculitis in Systemic Lupus Erythematosus: An Indication of Active Disease”. Clinics and Practice, Vol. 2, no. 2, May 2012, p. e54, doi:10.4081/cp.2012.e54.