Marcus, U., Hickson, F., Weatherburn, P., & Schmidt, A. J. (2013). Age biases in a large HIV and sexual behaviour-related internet survey among MSM. BMC Public Health, 13(1), 1. https://doi.org/10.1186/1471-2458-13-826
Chicago Style (17th ed.) CitationMarcus, Ulrich, Ford Hickson, Peter Weatherburn, and Axel J. Schmidt. "Age Biases in a Large HIV and Sexual Behaviour-related Internet Survey Among MSM." BMC Public Health 13, no. 1 (2013): 1. https://doi.org/10.1186/1471-2458-13-826.
MLA (9th ed.) CitationMarcus, Ulrich, et al. "Age Biases in a Large HIV and Sexual Behaviour-related Internet Survey Among MSM." BMC Public Health, vol. 13, no. 1, 2013, p. 1, https://doi.org/10.1186/1471-2458-13-826.
Warning: These citations may not always be 100% accurate.