APA
Torres S., Pereira L. S., Martins L., Gomes L. & Pimenta A. (19900530). [Ruptured aneurysm of the sinus of Valsalva into the right ventricle--apropos of a case]. : Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology.
Chicago
Torres S, Pereira L S, Martins L, Gomes L and Pimenta A. 19900530. [Ruptured aneurysm of the sinus of Valsalva into the right ventricle--apropos of a case]. : Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology.
Harvard
Torres S., Pereira L. S., Martins L., Gomes L. and Pimenta A. (19900530). [Ruptured aneurysm of the sinus of Valsalva into the right ventricle--apropos of a case]. : Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology.
MLA
Torres S, Pereira L S, Martins L, Gomes L and Pimenta A. [Ruptured aneurysm of the sinus of Valsalva into the right ventricle--apropos of a case]. : Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology. 19900530.