Transdermal estrogen therapy effects on fibrinogen levels in women with a past history of venous thromboembolism: a pilot study - Margarido, Paulo Francisco Ramos; Bagnoli, Vicente Renato; Fonseca, Ângela Maggio da; Maciel, G A R; Soares Jr., J M; D’Amico, É A; Baracat, Edmundo Chada (Clinical and experimental obstetrics & gynecology, 2011)