Rapid and severe Covid‐19 pneumonia with severe acute chest syndrome in a sickle cell patient successfully treated with tocilizumab. Issue 7 (12th May 2020) - De Luna, Gonzalo; Habibi, Anoosha; Deux, Jean‐François; Colard, Martin; Pham Hung d'Alexandry d'Orengiani, Anne‐Laure; Schlemmer, Frédéric; Joher, Nizar; Kassasseya, Christian; Pawlotsky, Jean Michel; Ourghanlian, Clément; Michel, Marc; Mekontso‐Dessap, Armand; et al.