Clarifying the relationship between pulmonary langerhans cell histiocytosis and Alpha 1 antitrypsin deficiency. - McCarthy, Cormac; Bugnet, Emmanuelle; Benattia, Amira; Keane, Michael P.; Vedie, Benoit; Lorillon, Gwenaël; Tazi, Abdellatif (Orphanet Journal of Rare Diseases, 2021)