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

Year Number of Results
2000 1
2003 1
2007 1
2008 1
2009 4
2010 6
2011 5
2012 6
2013 11
2014 14
2015 10
2016 10
2017 10
2018 11
2019 6
2020 3
2021 5
2022 1
2024 0

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Page 1
Recommendations for clinical research in children presenting to primary care out-of-hours services: a randomised controlled trial with parallel cohort study.
Weghorst AA, Holtman GA, Wolters PI, Russchen HA, Fickweiler F, Verkade HJ, Post J, Vermeulen KM, Kollen BJ, Bonvanie IJ, Berger MY. Weghorst AA, et al. Among authors: kollen bj. BJGP Open. 2021 Apr 26;5(2):bjgpopen20X101154. doi: 10.3399/bjgpopen20X101154. Print 2021 Apr. BJGP Open. 2021. PMID: 33293414 Free PMC article.
Reducing inappropriate psychotropic drug use in nursing home residents with dementia: protocol for participatory action research in a stepped-wedge cluster randomized trial.
Groot Kormelinck CM, van Teunenbroek CF, Kollen BJ, Reitsma M, Gerritsen DL, Smalbrugge M, Zuidema SU. Groot Kormelinck CM, et al. Among authors: kollen bj. BMC Psychiatry. 2019 Oct 12;19(1):298. doi: 10.1186/s12888-019-2291-4. BMC Psychiatry. 2019. PMID: 31606036 Free PMC article.
89 results