An endogenous retroviral envelope syncytin and its cognate receptor identified in the viviparous placental Mabuya lizard. - Cornelis G; Funk M; Vernochet C; Leal F; Tarazona OA; Meurice G; Heidmann O; Dupressoir A; Miralles A; Ramirez-Pinilla MP; Heidmann T (Proceedings of the National Academy of Sciences of the United States of America, 2017)