A nationwide prospective clinical trial on active surveillance in patients with non-intra-abdominal desmoid-type fibromatosis; the Grafiti trial. Issue 2 (February 2022) - Schut, Anne-Rose; Timbergen, Milea; van Broekhoven, Danique; van Dalen, Thijs; van Houdt, Winan; van Coevorden, Frits; Bonenkamp, Johannes; Dijkstra, Sander; Bemelmans, Marc; Been, Lukas; van Ginkel, Robert; Sleijfer, Stefan; et al.