About the Authors

Ralph C. A. Rippe

R.C.A.Rippe@lumc.nl

Affiliation Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands

Jacqueline J. Meulman

Affiliation Institute of Mathematics, Leiden University, Leiden, The Netherlands

Paul H. C. Eilers

Affiliation Department of Biostatistics, Erasmus Medical Center, Rotterdam, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RCAR PHCE JJM. Performed the experiments: RCAR. Analyzed the data: RCAR. Contributed reagents/materials/analysis tools: RCAR PHCE. Wrote the paper: RCAR PHCE JJM.