The Hepatitis B Serology Phase App provides a tool to help medical providers deduct acute or chronic Hepatitis B Phase based on serology results. Reference: Lok Anna SF, MD. Hepatitis B Virus: Overview of Management. In: UpToDate, Post TW (Ed), UpToDate, Waltham, MA. (Accessed on December 14, 2021). Created by Fernando Magana Herrera, DO and Kimberly Magana, MEd, OMS1.