APA (7th ed.) Citation

Chen, R., Zhu, J., Yang, Y., Liao, W., Ye, W., Du, L., . . . Zheng, Z. Evaluation of five questionnaires for obstructive sleep apnea screening in the elderly. Nature Portfolio.

Chicago Style (17th ed.) Citation

Chen, Riken, et al. Evaluation of Five Questionnaires for Obstructive Sleep Apnea Screening in the Elderly. Nature Portfolio.

MLA (9th ed.) Citation

Chen, Riken, et al. Evaluation of Five Questionnaires for Obstructive Sleep Apnea Screening in the Elderly. Nature Portfolio.

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