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Hepatitis B virus resistance to antiviral drugs: where are we going? <i>Liver Int.<\/i>, <b>31<\/b> (Suppl. 1), 111\u2013116 (2011).","DOI":"10.1111\/j.1478-3231.2010.02399.x"},{"key":"2","unstructured":"2) \u201cWHO|Hepatitis B.\u201d: \u2039http:\/\/www.who.int\/mediacentre\/factsheets\/fs204\/en\/\u203a, accessed 20 April, 2020."},{"key":"3","unstructured":"3) Roth GA, Abate D, Abate KH, <i>et al.<\/i> Global, regional, and national age-sex-specific mortality for 282 causes of death in 195 countries and territories, 1980\u20132017: a systematic analysis for the Global Burden of Disease Study 2017. <i>Lancet<\/i>, <b>392<\/b>, 1736\u20131788 (2018)."},{"key":"4","unstructured":"4) Takamatsu Y, Tanaka Y, Kohgo S, Murakami S, Singh K, Das D, Venzon DJ, Amano M, Higashi-Kuwata N, Aoki M, Delino NS, Hayashi S, Takahashi S, Sukenaga Y, Haraguchi K, Sarafianos SG, Maeda K, Mitsuya H. 4\u2032-Modified nucleoside analogs: potent inhibitors active against entecavir-resistant hepatitis B virus. <i>Hepatology<\/i>, <b>62<\/b>, 1024\u20131036 (2015)."},{"key":"5","doi-asserted-by":"crossref","unstructured":"5) Kohgo S, Yamada K, Kitano K, Iwai Y, Sakata S, Ashida N, Hayakawa H, Nameki D, Kodama E, Matsuoka M, Mitsuya H, Ohrui H. 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