Why is there such difficulty in defining the natural history of hepatitis C?
Seeff
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LB
National Institutes of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892, USA. seeffl@xtra.niddk.nih.gov
D006526:Hepatitis C / Q000209:etiology*; D006801:Humans; D011446:Prospective Studies; D012189:Retrospective Studies