Left atrial appendage thrombus with severe mitral stenosis: Responders and non-responders to anticoagulation Tariq Ashraf; Kanwal Fatima Aamir; Asif Nadeem; Shirjeel Murtaza; Parveen Akhtar; Samra Yasmin Haque; Rahmat Ghaffar; Mahmood ul Hassan; Fateh Ali Tipoo;

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Worrisome trends of ST-elevation myocardial infarction during the Covid-19 pandemic: Data from Portuguese centers Luís Oliveira; Rui Campante Teles; Carina Machado; Sérgio Madeira; Nélson Vale; Carla Almeida; João Brito; Sílvio Leal; Luís Raposo; Pedro de Araújo Gonçalves; António Miguel Pacheco; Henrique Mesquita Gabriel; Manuel Almeida; Dinis Martins; Miguel Mendes;