title: [Value of Wiljasalo's "projection difference index"].
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging*; D008220:Lymphography / Q000379:methods*; D008433:Mathematics; D012399:Rotation
vernacular_title: Uber den Wert des "Projection Difference Index" nach Wiljasalo.