Table A4.

Histopathological symptoms (S).

Histopathological Symptoms	Symptom Description
S1	diffuse vacuolization
S2	the boundary of cells is blurry around the portal vessels
S3	multifocal discrete mononuclear cell infiltration around the portal vessels
S4	the cytoplasm of hepatocytes is faintly staining around the portal vessels
S5	the cytoplasm of hepatocytes around the portal vessels is faintly staining
S6	blurry cell boundaries
S7	dilatated sinusoids
S8	focal mononuclear cell infiltration of the parenchyma
S9	focal mononuclear cell infiltration around the ductile
S10	the cytoplasm of hepatocytes is faintly staining in the portal area
S11	the nucleus is faintly staining in the portal area
S12	hydropic degeneration of the hepatocytes limited to the portal area
S13	hydropic degeneration of the hepatocytes
S14	hepatocyte detachment in the portal area
S15	diffuse mononuclear and, to a lesser extent, heterophil cellular infiltration