Petersen, Bibi, and Henrik Lorentzen. 2008. “Cytomegalovirus Complicating Biological Immunosuppressive Therapy in Two Patients With Psoriasis Receiving Treatment With Etanercept or Efalizumab”. Acta Dermato-Venereologica 88 (5):523-24. https://doi.org/10.2340/00015555-0491.