Response to Trametinib of a Pulmonary Langerhans Cell Histiocytosis Harboring a MAP2K1 Deletion. Lorillon, Gwenaël Jouenne, Fanelie Baroudjian, Barouyr de Margerie-Mellon, Constance Vercellino, Laetitia Meignin, Véronique Lebbe, Celeste Vassallo, Robert Mourah, Samia Tazi, Abdellatif ... Published in American Journal of Respiratory and Critical Care Medicine