Pulmonary alveolar proteinosis 529 Maurizio Luisetti Adult pulmonary Langerhans’ cell histiocytosis 532 Vincent Cottin, Romain Lazor and Jean-François Cordier Lymphangioleiomyomatosis 535 Vincent Cottin, Romain Lazor and Jean-François Cordier Chapter 17 – Pulmonary rehabilitation Respiratory physiotherapy 539 Julia Bott Pulmonary rehabilitation 543 Thierry Troosters, Hans Van Remoortel, Daniel Langer, Marc Decramer and Rik Gosselink Palliative care 552 Sylvia Hartl Chapter 18 - Epidemiology Measuring the occurrence and causation of respiratory diseases 554 Riccardo Pistelli and Isabella Annesi-Maesano