Reply: From the authors of the ERS/ATS statement on the international multidisciplinary classification of the interstitial pneumonias.

Nicholson AG, Adegunsoye A, Piciucchi S, Hariri LP, Khor YH, Wijsenbeek MS, Wells AU, Sharma A, Cooper WA, Antoniou K, Borie R, Fabre A, Inoue Y, Johannson KA, Johkoh T, Kawano-Dourado L, Kazerooni E, Maher TM, Molyneaux PL, Protti R, Ravaglia C, Renzoni EA, Saito-Koyama R, Sverzellati N, Walsh SLF, Wolters PJ, Yang SR, Travis WD, Ryerson CJ