Figure 1: Assessment of Chest Radiography quality in Lao PDR - Sum of scores of pre- and post-training, Assessment scores-(black diamond shape) Median sum of item scores Vertical straight line indicates the interquartile range of the sum of scores. ID: identification marking, POS: patient positioning, DEN: density, CON: contrast, SHA: sharpness, ART: artifacts, RS: assessment result score, TOT: total score on the 6 assessment factors 1: Assessment point before the training course. 2: Assessment point after the training course. P-value by Wilcoxon matched pairs test **P-value<0.01