Selective serotonin reuptake inhibitors and venlafaxine in early pregnancy and risk of birth defects: population based cohort study and sibling design

Furu K, Kieler H, Haglund B, Engeland A, Selmer R, Stephansson O, Valdimarsdottir UA, Zoega H, Artama M, Gissler M, Malm H, Nørgaard M. Selective serotonin reuptake inhibitors and venlafaxine in early pregnancy and risk of birth defects: population based cohort study and sibling design. BMJ. 2015; 350: h1798.