APA (7th ed.) Citation

O'Cathain, A., & Thomas, K. J. (2004). "Any other comments?" Open questions on questionnaires – a bane or a bonus to research? BMC medical research methodology, 4(1), 25. https://doi.org/10.1186/1471-2288-4-25

Chicago Style (17th ed.) Citation

O'Cathain, Alicia, and Kate J. Thomas. ""Any Other Comments?" Open Questions on Questionnaires – a Bane or a Bonus to Research?" BMC Medical Research Methodology 4, no. 1 (2004): 25. https://doi.org/10.1186/1471-2288-4-25.

MLA (9th ed.) Citation

O'Cathain, Alicia, and Kate J. Thomas. ""Any Other Comments?" Open Questions on Questionnaires – a Bane or a Bonus to Research?" BMC Medical Research Methodology, vol. 4, no. 1, 2004, p. 25, https://doi.org/10.1186/1471-2288-4-25.