He had scattered crepitations in his chest and was clubbed. He had a productive cough. CXR revealed persistent right lower and left lingular changes possibly bronchiectasis. He had some planar warts ...

Correspondence to Professor Fan Bai, Biodynamic Optical Imaging Center (BIOPIC), School of Life Sciences, Peking University, Beijing, China; fbai{at}pku.edu.cn and Professor Jun Wang, Department of ...