STRONG II trial: stereotactic body radiation therapy following chemotherapy for unresectable perihilar cholangiocarcinoma - a single-arm multicentre phase II study.

van Loosbroek SY, Milder MTW, de Ruysscher D, Vaes RDW, den Toom W, Willemssen F, Eskens F, Homs MYV, Groot Koerkamp B, van Driel LMJW, Seppenwoolde Y, van Werkhoven E, Intven M, Haj Mohammad N, de Bruijne J, Versteijne E, Bruynzeel AM, Brandts F, Erdmann JI, Westdorp H, Braam PM, Tjwa ETTL, Bouchart C, Demols A, Gulyban A, Buijsen J, de Vos-Geelen J, Dewulf M, Joye I, Vandamme T, Vonghia L, de Groot DJ, Dieters M, Ubbels FJF, Hoogwater FJH, Heijmen B, Méndez Romero A