TY - GENERIC DO - 10.20944/preprints202107.0354.v1 UR - http://dx.doi.org/10.20944/preprints202107.0354.v1 TI - Risk Factors Contributing to the Progression of Paroxysmal and Persistent Atrial Fibrillation in Heart Failure Patients with Mid-Range Ejection Fraction T2 - Preprints AU - Hazarapetyan, Lusine AU - Budaghyan, Lyudmila AU - Maloyan, Alina AU - Grigoryan, Svetlana PY - 2021 DA - 2021/07/15 PB - Preprints