1997g-703 africa atlases bileductneoplasms biliarytract biopsy burkittlymphoma cancer classification complications congresses contrastmedia control cytology diagnosis etc etiology experimental gallbladderneoplasms gastroenterology geneexpression geneexpressionregulation geneticregulation genetictherapy growth hepatitis hepatitisb hepatitisbvirus hepatitisc hepatology histology human immunosuppression internalmedicine intestine kaposi leukemia liver livercells liverdiseases livermetastasis livertransplantation livingdonors medicaloncology medicalradiology medicine metabolism methods nasopharyngealneoplasms needle needlebiopsy neoplasmmetastasis neoplasms oncogenicviruses oncology pancreas pancreaticneoplasms pathogenicity pathological pathology pathophysiology penileneoplasms prevention publichealth r895-920 regulation sarcoma small stemcells surgery therapeuticuse therapy tissues transplantation transplantationoforgans treatment tumors ultrasonography uterinecervicalneoplasms viral viralcarcinogenesis viralhepatitisvaccines w3fa1743rd1986m wc536 wi17 wi17f4951994 wi700f1911986m wi700s467l1997 wi735 wi735h5291976 wi735l78422001