[1] Hosp Univ Sant Joan de Reus, Med Phys, Reus, Spain
[2] RaySearch Labs AB, R&D, Stockholm, Sweden
[3] Ghent Univ Hosp, Radiat Oncol, Ghent, Belgium
[4] Univ Ghent, Radiat Oncol, Ghent, Belgium
[5] Metrol Med Phys Ctr, Natl Phys Lab, Teddington, Middx, England
[6] CIUSSS Est De Ille Montreal, Med Phys, Montreal, PQ, Canada
[7] Consorci Sanit Terrassa, Radiat Oncol, Terrassa, Spain
[8] Hosp Clin Barcelona, Radiat Oncol, Barcelona, Spain