[Changes in the portal system in chronic liver diseases evaluated by ultrasonic tomography].
D002908:Chronic Disease; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis*; D011168:Portal System / Q000473:pathology*; D014463:Ultrasonography
Promeni v portalnata sistema pri khronichni chernodrobni zaboliavaniia, pretseneni s ultrazvukova tomografiia.