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Oral contraceptive use changes brain activity and mood in women with previous negative affect on the pill--a double-blinded, placebo-controlled randomized trial of a levonorgestrel-containing combined oral contraceptive.
Gingnell M, Engman J, Frick A, Moby L, Wikström J, Fredrikson M, Sundström-Poromaa I. Gingnell M, et al. Psychoneuroendocrinology. 2013 Jul;38(7):1133-44. doi: 10.1016/j.psyneuen.2012.11.006. Epub 2012 Dec 6. Psychoneuroendocrinology. 2013. PMID: 23219471 Clinical Trial.
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