[The value of splenoportography in analysis of prehepatic block].
D000792:Angiography; D006801:Humans; D006973:Hypertension; D006975:Hypertension, Portal / Q000000981:diagnostic imaging*; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011172:Portography; D013163:Splenomegaly / Q000000981:diagnostic imaging*
ANGIOGRAPHY; HYPERTENSION, PORTAL/radiography; PORTAL VEINS/radiography; SPLENOMEGALY/radiography