Chen, F., Huang, X., Liu, Y., Lin, G., & Xie, C. (2016). Importance of fractional exhaled nitric oxide in the differentiation of asthma–COPD overlap syndrome, asthma, and COPD. Int J Chron Obstruct Pulmon Dis.

Chen, Feng-jia, Xin-yan Huang, Yang-li Liu, Geng-peng Lin, and Can-mao Xie. "Importance of Fractional Exhaled Nitric Oxide in the Differentiation of Asthma–COPD Overlap Syndrome, Asthma, and COPD." Int J Chron Obstruct Pulmon Dis 2016.

Chen, Feng-jia, et al. "Importance of Fractional Exhaled Nitric Oxide in the Differentiation of Asthma–COPD Overlap Syndrome, Asthma, and COPD." Int J Chron Obstruct Pulmon Dis 2016.