aids(acquiredimmunedeficiencysyndrome) alternativetreatment animal antiviralagents chinesemedicine complications congresses control cost-of-livingadjustments deltainfection disabilityevaluation disabledveterans diseases donorselection drugtherapy etiology hepatitis hepatitisb hepatitisbantigens hepatitiscvirus human lawandlegislation liver livercirrhosis liverneoplasms livertransplantation methods militarypensions pensions postoperativecomplications prevention secondaryprevention therapeuticuse therapy transplantation treatment unitedstates veterans viral viralhepatitisvaccines wc536 wc536i613v1983