TM, A., TR, M., L, S., S, P., HI, S., C, C., & E, B. (2010). The Brief Pain Inventory and its 'pain at its worst in the last 24 hours' item: Clinical trial endpoint considerations. Pain Medicine, 11(3), 337. https://doi.org/10.1111/j.1526-4637.2009.00774.x
Chicago Style (17th ed.) CitationTM, Atkinson, Mendoza TR, Sit L, Passik S, Scher HI, Cleeland C, and Basch E. "The Brief Pain Inventory and Its 'Pain at Its Worst in the Last 24 Hours' Item: Clinical Trial Endpoint Considerations." Pain Medicine 11, no. 3 (2010): 337. https://doi.org/10.1111/j.1526-4637.2009.00774.x.
MLA (9th ed.) CitationTM, Atkinson, et al. "The Brief Pain Inventory and Its 'Pain at Its Worst in the Last 24 Hours' Item: Clinical Trial Endpoint Considerations." Pain Medicine, vol. 11, no. 3, 2010, p. 337, https://doi.org/10.1111/j.1526-4637.2009.00774.x.