Prevalence of Factor V Leiden, FII G20210A, FXIII Val34Leu and MTHFR C677T polymorfism in cancer patients with and without venous thrombosis - Ramacciotti, Eduardo; Wolosker, Nelson; Puech-Leao, Pedro; Zeratti, Eduardo Antônio; Gusson, Paula Regina; Giglio, Auro del; Franco, Rendrik F. (Thrombosis Research, 2003)