Cita APA

Guo, L., Xu, Y., Deng, J., He, Y., Gao, X., Li, P., . . . Lu, C. (2015). Non-medical use of prescription pain relievers among high school students in China: A multilevel analysis. BMJ Open.

Chicago Style Citation

Guo, Lan, Yan Xu, Jianxiong Deng, Yuan He, Xue Gao, Pengsheng Li, Hong Wu, Jinhua Zhou, i Ciyong Lu. "Non-medical Use of Prescription Pain Relievers Among High School Students in China: A Multilevel Analysis." BMJ Open 2015.

Cita MLA

Guo, Lan, et al. "Non-medical Use of Prescription Pain Relievers Among High School Students in China: A Multilevel Analysis." BMJ Open 2015.