Lanza LL, McQuay LJ, Rothman KJ, Bone HG, Kaunitz AM, Harel Z, Ataher Q, Ross D, Arena PL, Wolter KD. Comment on journal review of 'Use of depot medroxyprogesterone acetate contraception and incidence of bone fracture'. J Fam Plann Reprod Health Care. 2013 Oct;39(4):306. doi: 10.1136/jfprhc-2013-100759
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.