Kelsey, T. W., Li, L. Q., Mitchell, R. T., Whelan, A., Anderson, R. A., & Wallace, W. H. B. A validated age-related normative model for male total testosterone shows increasing variance but no decline after age 40 years. Public Library of Science (PLoS).
Chicago Style (17th ed.) CitationKelsey, Thomas W., Lucy Q. Li, Rod T. Mitchell, Ashley Whelan, Richard A. Anderson, and W Hamish B. Wallace. A Validated Age-related Normative Model for Male Total Testosterone Shows Increasing Variance but No Decline After Age 40 Years. Public Library of Science (PLoS).
MLA (9th ed.) CitationKelsey, Thomas W., et al. A Validated Age-related Normative Model for Male Total Testosterone Shows Increasing Variance but No Decline After Age 40 Years. Public Library of Science (PLoS).
Warning: These citations may not always be 100% accurate.