The Association Between Midlife Physical Activity and Depressive Symptoms in Late Life: Age Gene/Environment Susceptibility-Reykjavik Study..

Chang M, Snaedal J, Einarsson B, Bjornsson S, Saczynski JS, Aspelund T, Garcia M, Gudnason V, Harris TB, Launer LJ, Jonsson PV. J Gerontol A Biol Sci Med Sci. 2015;71(4):502-7 PMID: 26525090