Funding for this research was provided by:
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (023.002.105)
Text and Data Mining valid from 2020-04-01
Received: 25 August 2019
Accepted: 19 March 2020
First Online: 1 April 2020
Ethics approval and consent to participate
: This study was conducted according to the guidelines laid down in the Declaration of Helsinki and all procedures involving human subjects were approved by the Central Committee on Research Involving Human Subjects, the Medical Research Ethics Committees of the participating hospitals, and the Registration Committee of the municipality of Amsterdam. Written informed consent for themselves and their children were obtained.
: Not applicable.
: The authors declare that they have no competing interests.