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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1997 1
2004 1
2005 1
2006 1
2008 4
2009 7
2010 7
2011 10
2012 14
2013 18
2014 15
2015 19
2016 14
2017 20
2018 14
2019 17
2020 14
2021 24
2022 30
2023 25
2024 5

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229 results

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Page 1
A simple formula for the calculation of sample size in pilot studies.
Viechtbauer W, Smits L, Kotz D, Budé L, Spigt M, Serroyen J, Crutzen R. Viechtbauer W, et al. Among authors: crutzen r. J Clin Epidemiol. 2015 Nov;68(11):1375-9. doi: 10.1016/j.jclinepi.2015.04.014. Epub 2015 Jun 6. J Clin Epidemiol. 2015. PMID: 26146089
Determinants of natural adult sleep: An umbrella review.
Philippens N, Janssen E, Kremers S, Crutzen R. Philippens N, et al. Among authors: crutzen r. PLoS One. 2022 Nov 7;17(11):e0277323. doi: 10.1371/journal.pone.0277323. eCollection 2022. PLoS One. 2022. PMID: 36342936 Free PMC article. Review.
General Data Protection Regulation (GDPR) Toolkit for Digital Health.
Hussein R, Wurhofer D, Strumegger EM, Stainer-Hochgatterer A, Kulnik ST, Crutzen R, Niebauer J. Hussein R, et al. Among authors: crutzen r. Stud Health Technol Inform. 2022 Jun 6;290:222-226. doi: 10.3233/SHTI220066. Stud Health Technol Inform. 2022. PMID: 35673005 Review.
229 results