Shared genetics and couple-associated environment are major contributors to the risk of both clinical and self-declared depression

Yanni Zeng, Pau Navarro, Charley Xin, Carmen Amador, Ana M. Fernandez-pujals, Pippa A. Thomson, Archie Campbell, Reka Nagy, Toni-kim Clarke, Jonathan D. Hafferty, Blair H. Smith, Lynne J. Hocking, Sandosh Padmanabhan, Caroline Hayward, Donald J. Macintyre, David J Porteous, Chris S. Haley, Andrew M. Mcintosh