Experimental Validation of an Analytical Program and a Monte Carlo Simulation for the Computation of the Far Out-of-Field Dose in External Beam Photon Therapy Applied to Pediatric Patients. - De Saint-Hubert M; Suesselbeck F; Vasi F; Stuckmann F; Rodriguez M; Dabin J; Timmermann B; Thierry-Chef I; Schneider U; Brualla L (Frontiers in oncology, 2022)