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Letter to the editor 

**Guenther A, Eickelberg O, Preissner KT, Chambers R, Laurent G, Wells A, Crestani B, Vancheri B, Bonniaud P, Camus P, Schmitz G, Klepetko W, Schultze J, Vossmeyer D, Stumpf P. European IPF Network: Natural Course, Pathomechanisms and Novel Treatment Options in nolvadexIdiopathic Pulmonary Fibrosis.
Thorax 36:9, September 2008.  


**A. Guenther on behalf of the European IPF Network, Eur Respir J 37:1-3, 2011.

Letter to the editor

Loeh B, Drakopanagiotakis F, Bandelli GP, von der Beck D, Tello S, Cordani E, Rizza E, Barrocu L, Markart P, Seeger W, Günther A*, Albera C*. Intraindividual response to treatment with pirfenidone in Idiopathic Pulmonary Fibrosis (IPF). Am J Respir Crit Care Med 191(1):110-3; 2014