APA
Varandas T., Carneiro A. V., . (20060725). Types of clinical studies. Systematic reviews. : 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
Varandas Teresa, Carneiro António Vaz, . 20060725. Types of clinical studies. Systematic reviews. : 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
Varandas T., Carneiro A. V., . (20060725). Types of clinical studies. Systematic reviews. : 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
Varandas Teresa, Carneiro António Vaz, . Types of clinical studies. Systematic reviews. : Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology. 20060725.