title: [The status of tumor markers in the early detection of gastrointestinal tumors].
authors.forename: R
authors.initials: R
authors.lastname: Klapdor
mesh_terms: D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor / Q000032:analysis*; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis*; D006801:Humans; D011230:Precancerous Conditions / Q000175:diagnosis*
chemical_list: D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor
vernacular_title: Stellenwert der Tumormarker bei der Früherkennung gastrointestinaler Tumoren.