1. Vitamin D Supplementation for Depressive Symptoms: A Systematic Review and Meta-analysis of Randomized Controlled Trials Shaffer, Jonathan A.; Edmondson, Donald E.; Wasson, Lauren; Falzon, Louise; Homma, Kirsten E.; Ezeokoli, Nchedcochukwu; Li, Peter; Davidson, Karina W. 2014 Articles Vitamin D--Therapeutic useDepression, Mental--TreatmentMeta-analysisMedicineMental healthMedical sciences