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Figure 1: Assessment of Chest Radiography quality in Lao PDR  Sum of scores of pre and posttraining, 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. Pvalue by Wilcoxon matched pairs test **Pvalue<0.01 
