Internal Medicine Department, Brugmann University Hospital, Université Libre de Bruxelles, Brussels, Belgium; Correspondence to: Mohammad Yassine Chérif, MD, Internal Medicine Department, Brugmann University Hospital, Université Libre de Bruxelles, Place Arthur Van Gehuchten, 4, 1020 Brussels, Belgium.
Bertrand Richert, MD, PhD
Department of Dermatology, Brugmann University Hospital, Université Libre de Bruxelles, Brussels, Belgium