Acknowledgments
I thank Guido Pennings for commenting on this article. I also thank all collaborators of projects where ICA or a precursor has been used and further developed, especially Hanna Van Parys.
Author contributions
Veerle Provoost wrote the article.
Conflicts of interest
None.
Ethical approval
This study was based on several studies that were approved by the Ethics Committee of the University Hospital Ghent or the Ethics Committee of the Faculty of Arts and Philosophy of Ghent University, Belgium.
Notes
1 In this, however, we accept that a single researcher cannot fully represent their discipline.