title: Calcitonin screening and pentagastrin testing: predictive value for the diagnosis of medullary carcinoma in nodular thyroid disease.
authors.affiliation: Department of Endocrinology and Division of Laboratory Research, University Duisburg-Essen, Essen, Germany. herrmann@endokrinologie-tzr.de
authors.forename: B L
authors.initials: BL
authors.lastname: Herrmann
authors.forename: K W
authors.initials: KW
authors.lastname: Schmid
authors.forename: R
authors.initials: R
authors.lastname: Goerges
authors.forename: M
authors.initials: M
authors.lastname: Kemen
authors.forename: K
authors.initials: K
authors.lastname: Mann