TY - JOUR T1 - Complexity and the hepatitis viruses. JF - Gut JO - Gut SP - 1770 LP - 1771 DO - 10.1136/gut.35.12.1770 VL - 35 IS - 12 AU - B S Blumberg Y1 - 1994/12/01 UR - http://gut.bmj.com/content/35/12/1770.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -