Correlation Between 2D Strain and Classic Echocardiographic Indices in the Diagnosis of Right Ventricular Dysfunction in COPD. - Masson Silva JB; Tannus Silva DGS; Furtado RG; da Silva Júnior CG; Araújo FA; Costa SA; Marra da Madeira Freitas E; Rassi DDC; Rabahi MF; Rassi S (International journal of chronic obstructive pulmonary disease, 2021)