Deterding R, Griese M, Deutsch G, Warburton D, DeBoer EM, Cunningham S, Clement A, Schwerk N, Flaherty KR, Brown KK, Voss F, Schmid U, Schlenker-Herceg R, Verri D, Dumistracel M, Schiwek M, Stowasser S, Tetzlaff K, Clerisme-Beaty E, Young LR. Study design of a randomised, placebo-controlled trial of nintedanib in children and adolescents with fibrosing interstitial lung disease. ERJ Open Res. 2021 Apr; 7(2).