Inhaled Maintenance Therapy in the Follow-Up of COPD in Outpatient Respiratory Clinics. Factors Related to Inhaled Corticosteroid Use. EPOCONSUL 2021 Audit Myriam Calle Rubio; Marc Miravitlles; José Luis López-Campos; Bernardino Alcázar Navarrete; Juan José Soler Cataluña; Manuel E. Fuentes Ferrer; Juan Luis Rodríguez Hermosa;