APA

Mathieson S., Wertheimer G., Maher C. G., Christine Lin C., McLachlan A. J., Buchbinder R., Pearson S. & Underwood M. (20201215). What proportion of patients with chronic noncancer pain are prescribed an opioid medicine? Systematic review and meta-regression of observational studies. : Journal of internal medicine.

Chicago

Mathieson S, Wertheimer G, Maher C G, Christine Lin C-W, McLachlan A J, Buchbinder R, Pearson S-A and Underwood M. 20201215. What proportion of patients with chronic noncancer pain are prescribed an opioid medicine? Systematic review and meta-regression of observational studies. : Journal of internal medicine.

Harvard

Mathieson S., Wertheimer G., Maher C. G., Christine Lin C., McLachlan A. J., Buchbinder R., Pearson S. and Underwood M. (20201215). What proportion of patients with chronic noncancer pain are prescribed an opioid medicine? Systematic review and meta-regression of observational studies. : Journal of internal medicine.

MLA

Mathieson S, Wertheimer G, Maher C G, Christine Lin C-W, McLachlan A J, Buchbinder R, Pearson S-A and Underwood M. What proportion of patients with chronic noncancer pain are prescribed an opioid medicine? Systematic review and meta-regression of observational studies. : Journal of internal medicine. 20201215.