age:			immediate.
sex:			immediate.
steroid:		immediate.
antviral:		immediate.
fatigue:		immediate.
malaise:		immediate.
anorexia:		immediate.
liver_big:		immediate.
liver_firm:		immediate.
spleen_palpable:	immediate.
spiders:		immediate.
ascites:		immediate.
varices:		immediate.
bilirubin:		delayed.
alk_phosphate:		delayed.
sgot:			delayed.
albumin:		delayed.
protime:		delayed.
histology:		immediate.