About the Authors

L. Renee Ruhaak

l.r.ruhaak@lumc.nl

Affiliation Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands

Hae-Won Uh

Affiliation Section Medical Statistics, Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands

Marian Beekman

Affiliation Section Molecular Epidemiology, Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands

Carolien A. M. Koeleman

Affiliation Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands

Cornelis H. Hokke

Affiliation Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands

Rudi G. J. Westendorp

Affiliation Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands

Manfred Wuhrer

Affiliation Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands

Jeanine J. Houwing-Duistermaat

Affiliation Section Medical Statistics, Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands

P. Eline Slagboom

Contributed equally to this work with: P. Eline Slagboom, André M. Deelder

Affiliation Section Molecular Epidemiology, Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands

André M. Deelder

Contributed equally to this work with: P. Eline Slagboom, André M. Deelder

Affiliation Biomolecular Mass Spectrometry Unit, Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LRR CHH RGJW MW PES AMD. Performed the experiments: LRR HWU CAMK MW. Analyzed the data: LRR HWU CHH MW JHD PES. Contributed reagents/materials/analysis tools: LRR CAMK RGJW MW JHD PES AMD. Wrote the paper: LRR HWU MB CHH MW JHD PES AMD.