Amsterdam Gastroenterology Endocrinology Metabolism

Comparison of 7 Published LC-MS/MS Methods for the Simultaneous Measurement of Testosterone, Androstenedione, and Dehydroepiandrosterone in Serum

Büttler, R. M., Martens, F., Fanelli, F., Pham, H. T., Kushnir, M. M., Janssen, M. J. W., Owen, L., Taylor, A. E., Soeborg, T., Blankenstein, M. A. & Heijboer, A. C., 2015, In: Clinical Chemistry. 61, 12, p. 1475-1483

Research output: Contribution to journal › Article › Academic › peer-review

Determination of human reference values for serum total 1,25-dihydroxyvitamin D using an extensively validated 2D ID-UPLC-MS/MS method

Dirks, N. F., Martens, F., Vanderschueren, D., Billen, J., Pauwels, S., Ackermans, M. T., Endert, E., den Heijer, M., Blankenstein, M. A. & Heijboer, A. C., Nov 2016, In: Journal of Steroid Biochemistry and Molecular Biology. 164, p. 127-133

Research output: Contribution to journal › Article › Academic › peer-review

Accuracy of 6 Routine 25-Hydroxyvitamin D Assays: Influence of Vitamin D Binding Protein Concentration

Heijboer, A. C., Blankenstein, M. A., Kema, I. P. & Buijs, M. M., 2012, In: Clinical Chemistry. 58, 3, p. 543-548

Research output: Contribution to journal › Article › Academic › peer-review

Stability of steroid hormones in dried blood spots (DBS)

Olthof, A., Hillebrand, J. J., Wickenhagen, W. V., Boelen, A. & Heijboer, A. C., 17 Jun 2024, (E-pub ahead of print) In: Clinical chemistry and laboratory medicine.

Research output: Contribution to journal › Article › Academic › peer-review

A systematic review of subclinical hyperthyroidism guidelines: a remarkable range of recommendations

Ursem, S. R., Boelen, A., Bruinstroop, E., Elders, P. J. M., Gussekloo, J., Poortvliet, R. K. E., Heijboer, A. C. & den Elzen, W. P. J., 1 Jun 2024, In: European thyroid journal. 13, 3

Research output: Contribution to journal › Review article › Academic › peer-review

Should we depend on reference intervals from manufacturer package inserts? Comparing TSH and FT4 reference intervals from four manufacturers with results from modern indirect methods and the direct method

Dirks, N. F., den Elzen, W. P. J., Hillebrand, J. J., Jansen, H. I., Boekel, E. T., Brinkman, J., Buijs, M. M., Demir, A. Y., Dijkstra, I. M., Endenburg, S. C., Engbers, P., Gootjes, J., Janssen, M. J. W., Kniest-de Jong, W. H. A., Kok, M. B., Kamphuis, S., Kruit, A., Michielsen, E., Wolthuis, A., Boelen, A., & 1 othersHeijboer, A. C., 1 Jun 2024, In: Clinical chemistry and laboratory medicine. 62, 7, p. 1352-1361 10 p.

Research output: Contribution to journal › Article › Academic › peer-review