Effect of Nintedanib on Lung Function in Patients With Systemic Sclerosis−Associated Interstitial Lung Disease : Further Analyses of a Randomized, Double-Blind, Placebo-Controlled Trial - Maher, Toby M. (National Heart and Lung Institute. Imperial College London and NIHR Clinical Research Facility. Royal Brompton Hospital. London. UK. and Keck School of Medicine. University of Southern California) ; Mayes, Maureen D. (University of Texas McGovern Medical School) ; Kreuter, Micahel (Thoraxklinik. University of Heidelberg. and the German Center for Lung Research) ; Volkmann, Elizabeth R. (University of California. David Geffen School of Medicine) ; Aringer, Martin (University Medical Center and Faculty of Medicine Carl Gustav Carus. TU Dresden) ; Castellvi, Ivan (Institut d'Investigació Biomèdica Sant Pau) ; Cutolo, Maurizio (Istituto di Ricovero e Cura A Carattere Scientifico (IRCCS)) ; Stock, Christian (Boehringer Ingelheim Pharma GmbH & Co. KG) ; Schoof, Nils (Boehringer Ingelheim International GmbH. Ingelheim am Rhein) ; Alves, Margarida (Boehringer Ingelheim International GmbH. Ingelheim am Rhein) ; Raghu, Ganesh (University of Washington)