All Stories

  1. Age-specific reference values improve the diagnostic performance of AMH in polycystic ovary syndrome

    Article • Clinical Chemistry and Laboratory Medicine (CCLM), February 2020, De Gruyter

    Josef van Helden

  2. Technical and diagnostic performance of a new fully automated immunoassay for the determination of intact fibroblast growth factor 23 (FGF23)

    Article • Scandinavian Journal of Clinical and Laboratory Investigation, October 2018, Taylor & Francis

    Ralf Weiskirchen, Josef van Helden

  3. Age-independent anti-Müllerian hormone (AMH) standard deviation scores to estimate ovarian function

    Article • European Journal of Obstetrics & Gynecology and Reproductive Biology, June 2017, Elsevier

    Josef van Helden

  4. Analytical evaluation of the novel soluble fms-like tyrosine kinase 1 and placental growth factor assays for the diagnosis of preeclampsia

    Article • Clinical Biochemistry, November 2015, Elsevier

    Josef van Helden

  5. Performance of the two new fully automated anti-Müllerian hormone immunoassays compared with the clinical standard assay

    Article • Human Reproduction, June 2015, Oxford University Press (OUP)

    Josef van Helden

  6. Experience with the first fully automated chemiluminescence immunoassay for the quantification of 1α, 25-dihydroxy-vitamin D

    Article • Clinical Chemistry and Laboratory Medicine (CCLM), January 2015, De Gruyter

    Josef van Helden

  7. Hepatitis-C-Diagnostik: Klinische Evaluierung der HCV-Core-Antigenbestimmung

    Article • Seminars in Musculoskeletal Radiology, October 2014, Thieme Publishing Group

    Josef van Helden

  8. Hepatitis C diagnosics: clinical evaluation of the HCV-core antigen determination

    Article • BMC Infectious Diseases, January 2014, Springer Science + Business Media

    Josef van Helden

  9. Effektive Glykolyse-Inhibierung im Citrat-gepufferten venösen Vollblut und Plasma/Effective inhibition of glycolysis in venous whole blood and plasma samples

    Article • LaboratoriumsMedizin, January 2012, De Gruyter

    Josef van Helden

  10. Performance evaluation of the ADVIA Centaur® HIV Ag/Ab Combo assay

    Article • Journal of Virological Methods, December 2010, Elsevier

    Josef van Helden

  11. Experience with the IVDD performance evaluations of the ADVIA Centaur infectious disease assays

    Article • Journal of Clinical Virology, April 2004, Elsevier

    Josef van Helden