title: Use of direct protography in diagnosis of liver diseases.
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000000981:diagnostic imaging*; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011168:Portal System / Q000000981:diagnostic imaging*; D011172:Portography