APA Citation

Hong, Y., Ji, W., An, S., Han, S., Lee, S., & Kim, W. J. (2016). Sex differences of COPD phenotypes in nonsmoking patients. Int J Chron Obstruct Pulmon Dis.

Chicago Style Citation

Hong, Yoonki, Wonjun Ji, Soojeong An, Seon-Sook Han, Seung-Joon Lee, and Woo Jin Kim. "Sex Differences of COPD Phenotypes in Nonsmoking Patients." Int J Chron Obstruct Pulmon Dis 2016.

MLA Citation

Hong, Yoonki, et al. "Sex Differences of COPD Phenotypes in Nonsmoking Patients." Int J Chron Obstruct Pulmon Dis 2016.

Warning: These citations may not always be 100% accurate.