How service users envision their engagement in processes of collaborative innovation : A Q-methodological study on user involvement in eHealth collaborationsCallens, Chesney; Verhoest, Koen; Klijn, Erik Hans; Nõmmik, Steven; Pina, Vicente; Brogaard, LenaPublic policy and administration2023 https://doi.org/10.1177/09520767231170298 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS