Evaluating three biomarkers as prognostic factors of in-hospital mortality and severity in heart failure: A prospective cohort Pedro A. Segura-Saldaña; Diego Chambergo-Michilot; Javier E. Alarcón-Santos; Cristian Aguilar; Mayita L. Alvarez-Vargas; Marcos Padilla-Reyes; Rodrigo Leon-Vivar; Marcos Pariona-Javier;

The impact of the COVID-19 pandemic on acute coronary syndrome admissions to a tertiary care hospital in Portugal João Calvão; Ana Filipa Amador; Catarina Martins da Costa; Paulo Maia Araújo; Teresa Pinho; João Freitas; Sandra Amorim; Filipe Macedo;

Cardiopulmonary exercise testing in clinical practice: Principles, applications, and basic interpretation Hélder Dores; Miguel Mendes; Ana Abreu; Anaí Durazzo; Cidália Rodrigues; Eduardo Vilela; Gonçalo Cunha; José Gomes Pereira; Luísa Bento; Luís Moreno; Paulo Dinis; Sandra Amorim; Susana Clemente; Mário Santos;