Nguyen BTH, Tran HP, Ho NTU, Ma TN, Tran TN, Nguyen TTL, et al. Unusual concurrent HBsAg and anti-HBs positivity in chronic hepatitis B with compensated cirrhosis. EJCRIM [Internet]. 2025 Dec. 23 [cited 2026 Nov. 3];13(1). Available from: https://ejcrim.com/index.php/ejcrim/article/view/6007