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Identification of Symptom Clusters and Their Influencing Factors in Subgroups of Chinese Patients With Acute Exacerbation of Chronic Obstructive Pulmonary Disease

EpidemiologyChronic DiseaseClinical EpidemiologyDiagnosisSymptom ClustersAcute ExacerbationPublic HealthMedicineChinese PatientsPulmonary DiseaseComorbidity