title: [Principles of general ultrasonographic practice. I. Basic concepts and definitions].
authors.forename: St
authors.initials: S
authors.lastname: Schnur
mesh_terms: D002769:Cholelithiasis / Q000000981:diagnostic imaging; D006391:Hemangioma / Q000000981:diagnostic imaging; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging; D008113:Liver Neoplasms / Q000000981:diagnostic imaging; D012680:Sensitivity and Specificity; D013154:Spleen / Q000000981:diagnostic imaging; D013163:Splenomegaly / Q000000981:diagnostic imaging; D013961:Thyroid Gland / Q000000981:diagnostic imaging; D014463:Ultrasonography / Q000379:methods