S245: RUXOLITINIB IN PEDIATRIC PATIENTS WITH TREATMENT-NAIVE OR STEROID-REFRACTORY CHRONIC GRAFT VERSUS HOST DISEASE: PRIMARY FINDINGS FROM THE PHASE II REACH5 STUDY oleh Franco Locatelli, Bulent Antmen, Hyoung Jin Kang, Katsuyoshi Koh, Yoshiyuki Takahashi, Alphan Kupesiz, Maria Gabriela Matos, Donna Wall, Sunil Bhat, Ho Joon Im, Tayfun Gungor, Meng-Yao Lu, Tommaso Stefanelli, Christine Rosko, Annie St. Pierre, Karin Burock, Cristina Diaz-De-Heredia