Reply to: Letter to the Editor from A.H. Jan Danser and Ingrid M. Garrelds: The clinical impact of sample storage at -20°C on renin reference intervals and aldosterone-renin ratio calculations

J Clin Endocrinol Metab. 2024 Apr 17:dgae245. doi: 10.1210/clinem/dgae245. Online ahead of print.

Ömer Özcan^{1

2}, Jacquelien J Hillebrand^{1

2}, Wendy P J den Elzen^{1

3

4}, Annemieke C Heijboer^{1

2

5

6}

¹ Amsterdam UMC location University of Amsterdam, Department of Laboratory Medicine, Meibergdreef 9, Amsterdam, The Netherlands.
² Amsterdam Gastroenterology, Endocrinology & Metabolism, Amsterdam, The Netherlands.
³ Laboratory Specialized Diagnostics & Research, Department of Laboratory Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, the Netherlands.
⁴ Amsterdam Public Health Research Institute, Meibergdreef 9, Amsterdam, Netherlands.
⁵ Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Laboratory Medicine, Boelelaan 1117, Amsterdam, The Netherlands.
⁶ Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands.

No abstract available

Keywords: cryoactivation; preanalytical error; prorenin; renin.