APA (7th ed.) Citation

Y, H., W, J., S, A., SS, H., SJ, L., & WJ, K. (2016). Sex differences of COPD phenotypes in nonsmoking patients. International Journal of COPD, 2016(Issue 1), 1657-1662.

Chicago Style (17th ed.) Citation

Y, Hong, Ji W, An S, Han SS, Lee SJ, and Kim WJ. "Sex Differences of COPD Phenotypes in Nonsmoking Patients." International Journal of COPD 2016, no. Issue 1 (2016): 1657-1662.

MLA (9th ed.) Citation

Y, Hong, et al. "Sex Differences of COPD Phenotypes in Nonsmoking Patients." International Journal of COPD, vol. 2016, no. Issue 1, 2016, pp. 1657-1662.