question: my father,s age of 74 years.he is suffering from jaundice since 7 wks.symptom-yellowish eyes & body,loss of appetite,gas formation & eructation,occasinally nausea & vomiting & weakness.Now serum bilirubin level is 34.7,conjugated-31.sgot-132,sgpt-68,alkaling phosphate-206,usg abdomen-mild hepatitis & no obstruction.endoscopy-mild gastral antritisMRCP-normal study,total protein-6.5,serum albumin-3.4,prothrombin time-13.9,HEPATITIS-A,B,C,E--NEGATIVE,ANA-22.25,AMA-NEGATIVE.What is the probable diagnosis?& what should i do?