Gupta, Priyanka, et al. “A Hospital Based Retrospective Study on Hepatotropic Viruses As a Cause of Acute Viral Hepatitis in Children in Uttarakhand, India”. Indian Journal of Community Health, vol. 27, no. 4, Dec. 2015, pp. 451-5, https://www.iapsmupuk.org/journal/index.php/IJCH/article/view/603.