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chronic

becoming chronic

chronic disease; chronic illness

chronic disease

chronic fatigue syndrome; CFS

chronic hepatitis

chronic phase

chronic addiction; chronic intoxication

chronic bronchitis

chronic myelogenous (myeloid) leukemia; CML

chronic obstructive pulmonary disease; COPD

chronic obstructive respiratory disease

chronic rheumatoid arthritis

chronic rheumatoid arthritis

chronic thyroiditis; Hashimoto's disease