Aortic valve replacement with a stentless bioprosthesis in patients with weakened aortic annulus

Bayard Gontijo Filho¹; Mário O Vrandecic¹; Fernando Antônio Fantini¹; Juscelino Teixeira Barbosa¹; João Alfredo de Paula e Silva¹; Sandra S Avelar¹; Leonardo F Drumond¹; Cristiana Gutierrez¹

DOI: 10.1590/S0102-76381993000200006 Braz J Cardiovasc Surg. 1993;8(2):118-124