Effect of vitamin D supplements on left ventricular ejection fraction in patients with heart failure: A systematic review and meta-analysis of randomized controlled trials Aryan Naghedi; Hasan Haghaninejad; Hamidreza Varastehravan; Arvin Naghedi; Nima Farshadi;

Quality of Life Scores Association with other Patient Reported Outcomes: Validating Minnesota Living with Heart Failure Questionnaire to Portuguese Irene Marques; Sofia Viamonte; Milton Severo; António Gomes Pinto; Cândida Fonseca; Henrique Cyrne Carvalho;

Effectiveness of a cardiac rehabilitation program in women with heart failure Andreia Campinas; Cristine Schmidt; Maria Isilda Oliveira; Sandra Magalhães; Catarina Gomes; Rita Nogueira-Ferreira; Fernando Ribeiro; Mário Santos;