Keywords: میکروسیکولار پوستی; CORDIOPREV clinical trial; Coronary artery disease; Capillaroscopy; Microvascular dysfunction; Capillary density; Cutaneous microcirculation; Ensayo clÃnico CORDIOPREV; CardiopatÃa isquémica; Capilaroscopia; Disfunción microvascular; Densidad capilar;