%0 Journal Article %A P J Johnson %A I G McFarlane %T Chronic active hepatitis. %D 1991 %R 10.1136/gut.32.Suppl.S63 %J Gut %P S63-S72 %V 32 %N Suppl %U https://gut.bmj.com/content/gutjnl/32/supplement/S63.full.pdf