RT Journal Article SR Electronic T1 Outcome of lamivudine resistant hepatitis B virus infection in liver transplant recipients in Singapore JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 581 OP 581 DO 10.1136/gut.48.4.581 VO 48 IS 4 A1 C T WAI A1 S G LIM A1 K C TAN YR 2001 UL http://gut.bmj.com/content/48/4/581.1.abstract AB