Similar to <cite>[16]</cite> , we apply a thresholding based bounding box (B-Box) generation method. The B-Box bounds pixels whose heatmap intensity is above 90% of the maximum intensity. The resulting region of interest is then cropped for next level modeling. Fig. 2b illustrates the process of report generation. If there is no active thoracic disease found in an X-ray, a report will be directly generated by an attentive LSTM based on the original X-ray as shown in the green dashed box. Otherwise (as shown in the red dashed box), the cropped subimage with localized disease from the classification module (Fig. 2a) is used to generate description of abnormalities whereas the original X-ray is used to generate description of normalities in the report.