Preliminary results of severe venous insufficiency treatment with thermal ablation of the great saphenous vein by endovascular technique with laser diode 980nm developed in Brazil, associated with sclerotherapy with polidocanol - Bertanha, Matheus; Sobreira, Marcone Lima; Camargo, Paula Angelelli Bueno; Pimenta, Rafael Elias Farres; Mariúba, Jamil Victor Oliveira; Moura, Regina; Bagnato, Vanderlei Salvador; Yoshida, Winston Bonetti (Revista do Colégio Brasileiro de Cirurgiões, 2017)