Frequency and mutation patterns of resistance in patients with chronic hepatitis B infection treated with nucleos(t)ide analogs in add-on and switch strategies.
Discussion: Accordingly, in our previously published report, we found that rtQ215A/H/P/S substitutions could be detected as naturally occurring mutations in treatment-naive patients with CHB.
HBV mutation literature information.
PMID: 
2011
Hepatitis monthly
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