http://ghr.nlm.nih.gov/condition=factorvleidenthrombophilia Genetics Home Reference: Factor V Leiden Thrombophilia Genetics Home Reference: Factor V Leiden Thrombophilia Factor V Leinden Factor V Leiden blood clotting disorder Genetics Home Reference (GHR) Genetics Home Reference: Factor V Leiden Thrombophilia http://ghr.nlm.nih.gov/condition=factorvleidenthrombophilia Factor V Leinden