Acute exacerbation of idiopathic pulmonary fibrosis: International survey and call for harmonisation.

Kreuter M, Polke M, Walsh SLF, Krisam J, Collard HR, Chaudhuri N, Avdeev S, Behr J, Calligaro G, Corte T, Flaherty K, Funke-Chambour M, Kolb M, Kondoh Y, Maher TM, Molina MM, Morais A, Moor CC, Morisset J, Pereira C, Quadrelli S, Selman M, Tzouvelekis A, Valenzuela C, Vancheri C, Vicens-Zygmunt V, Wälscher J, Wuyts W, Wijsenbeek M, Cottin V, Bendstrup E