1. Which is the hen and which is the egg?
Uta Düesberg, Tilman Sauerbruch, Ulrich Spengler 
Gastroenterology 
Volume 118, Issue 4, (April 2000)
DOI: /S (00)
Copyright © 2000 American Gastroenterological Association Terms and Conditions

2. Fig. 1
Immune response and viral parameters during HCV reinfection. HCV-RNA results: −, Negative PCR result; +, positive PCR result. Serum ALT levels (international units) were measured by routine biochemistry. T-cell proliferation (4-hour tritium-thymidine uptake) in response to recombinant HCV core, NS3, NS4, and NS5 proteins was measured in Ficoll-separated peripheral blood mononuclear cells. Results are shown as stimulation indices (SI) relative to the buffer control.
Gastroenterology  , DOI: ( /S (00) )
Copyright © 2000 American Gastroenterological Association Terms and Conditions