title: Introduction to continuing special series.
authors.affiliation: Institute of Pathology, Medical University of Graz, Austria. helmut.popper@meduni-graz.at
authors.forename: Helmut H
authors.initials: HH
authors.lastname: Popper
mesh_terms: D019937:Diagnostic Techniques and Procedures / Q000639:trends*; D006801:Humans; D010336:Pathology / Q000193:education* / Q000379:methods / Q000639:trends