<unk>  is a common and often debilitating symptom that affects up to 50% of patients admitted to acute, tertiary care hospitals and a quarter of patients seeking care in ambulatory settings. The presence of<unk>  is a potent predictor of mortality, often surpassing common physiological measurements in predicting the clinical course of a patient.
Dyspnea epidemiology and demographics
Orthopnea epidemiology and demographics
Chest pain epidemiology and demographics
Asthma epidemiology and demographics
Nocturnal asthma epidemiology and demographics
Air embolism epidemiology and demographics
Pulmonary embolism epidemiology and demographics
Dizziness epidemiology and demographics