Portuguese recommendations for the management of transthyretin amyloid cardiomyopathy (Part 1 of 2): Screening, diagnosis and treatment. Developed by the Task Force on the management of transthyretin amyloid cardiomyopathy of the Working Group on Myocardial and Pericardial Diseases of the Portuguese Society of Cardiology - Nuno Marques; Sílvia Aguiar Rosa; Filipa Cordeiro; Raquel Menezes Fernandes; Catarina Ferreira; Dina Bento; Dulce Brito; Nuno Cardim; Luís Lopes; Olga Azevedo (Revista Portuguesa de Cardiologia)