Communicable Disease Control; Coronavirus Infections; Delivery of Health Care; Mental Health; Pandemics; Pneumonia, Viral; Rheumatic Diseases; Rheumatology; Telemedicine/methods; Antirheumatic Agents/pharmacology; Betacoronavirus; COVID-19; Communicable Disease Control/methods; Communicable Disease Control/organization & administration; Comorbidity; Coronavirus Infections/epidemiology; Coronavirus Infections/immunology; Coronavirus Infections/prevention & control; Coronavirus Infections/therapy; Delivery of Health Care/organization & administration; Delivery of Health Care/trends; Health Services Needs and Demand/trends; Humans; Organizational Innovation; Pandemics/prevention & control; Pneumonia, Viral/epidemiology; Pneumonia, Viral/immunology; Pneumonia, Viral/prevention & control; Pneumonia, Viral/therapy; Practice Patterns, Physicians'/trends; Rheumatic Diseases/epidemiology; Rheumatic Diseases/therapy; Rheumatic Diseases/virology; Rheumatology/methods; Rheumatology/trends; SARS-CoV-2; Severity of Illness Index