Chirila C, Earnshaw SR, Black L, McDade CL, Roskell NS, Shannon PR, Montorsi F, Andriole GL. Economic analysis: randomized, placebo-controlled clinical trial of dutasteride in men at high risk for prostate cancer. J Cancer Sci Ther. 2011;S3(004). doi: 10.4172/1948-5956.S3-004
Zarkin GA, Bray JW, Davis KL, Babor TF, Higgins-Biddle JC. The costs of screening and brief intervention for risky alcohol use. J Stud Alcohol. 2003 Jan 1;64(6):849-57.
Hartman M, Bolton E, Fehnel SE. Accounting for age differences on the Wisconsin Card Sorting Test: decreased working memory, not inflexibility. Psychol Aging. 2001 Sep 1;16(3):385-99.