Funding for this research was provided by:
Aidsfonds Nederland (2012056)
Text and Data Mining valid from 2018-07-12
Received: 23 August 2016
Revised: 8 June 2018
Accepted: 8 June 2018
First Online: 12 July 2018
Compliance with Ethical Standards
: The authors declare that they have no other conflict of interest.
: The protocol has been approved by two ethical committees: firstly the medical ethical committee of the Zuyderland Hospital in Heerlen, and secondly it has been independently reviewed by the Maastricht University Ethics Research Committee Psychology and Neuroscience (ERCPN) of the faculty of Psychology and Neuroscience at Maastricht University. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.