Subcutaneous Abatacept in Patients With Polyarticular-Course Juvenile Idiopathic Arthritis - Brunner, Hermine I.; Tzaribachev, Nikolay; Vega Cornejo, Gabriel; Louw, Ingrid; Berman, Alberto; Calvo Penadés, Inmaculada; Antón, Jordi; Avila Zapata, Francisco; Cuttica, Rubén; Horneff, Gerd; Foeldvari, Ivan; Keltsev, Vladimir; et al. (2018)