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Proportion (%) of treatment fractions setup errors within given tolerance, translational (3D Vect on top) and rotational (MaxAngle at the bottom), measured on pre-treatment (CBCTpTT) and intra fractions (CBCT12 + 23) CBCTs. The thresholds denoted be a red line represent a 3D vector = 3.5 mm corresponding to a setup errors of 2 mm in the 3 directions and a maximum rotation angle of 2°
