Here's a report, in the journal Transplantation (the full published paper is available at the link at bottom):
Building Kidney Exchange Programmes in Europe – An Overview of Exchange Practice and Activities
Biró, Péter1; Haase-Kromwijk, Bernadette2; Andersson, Tommy3; Ásgeirsson, Eyjólfur Ingi4; Baltesová, Tatiana5; Boletis, Ioannis6; Bolotinha, Catarina7; Bond, Gregor8; Böhmig, Georg8; Burnapp, Lisa9; Cechlárová, Katarína10; Di Ciaccio, Paola11; Fronek, Jiri12; Hadaya, Karine13; Hemke, Aline2; Jacquelinet, Christian14; Johnson, Rachel9; Kieszek, Rafal15; Kuypers, Dirk16; Leishman, Ruthanne17; Macher, Marie-Alice14; Manlove, David18; Menoudakou, Georgia19; Salonen, Mikko20; Smeulders, Bart21; Sparacino, Vito11; Spieksma, Frits16; de la Oliva Valentín Muñoz, María22; Wilson, Nic23; vd Klundert, Joris24 on behalf of the ENCKEP COST Action
Transplantation: September 21, 2018 - Volume Online First
Building Kidney Exchange Programmes in Europe – An Overview of Exchange Practice and Activities
Biró, Péter1; Haase-Kromwijk, Bernadette2; Andersson, Tommy3; Ásgeirsson, Eyjólfur Ingi4; Baltesová, Tatiana5; Boletis, Ioannis6; Bolotinha, Catarina7; Bond, Gregor8; Böhmig, Georg8; Burnapp, Lisa9; Cechlárová, Katarína10; Di Ciaccio, Paola11; Fronek, Jiri12; Hadaya, Karine13; Hemke, Aline2; Jacquelinet, Christian14; Johnson, Rachel9; Kieszek, Rafal15; Kuypers, Dirk16; Leishman, Ruthanne17; Macher, Marie-Alice14; Manlove, David18; Menoudakou, Georgia19; Salonen, Mikko20; Smeulders, Bart21; Sparacino, Vito11; Spieksma, Frits16; de la Oliva Valentín Muñoz, María22; Wilson, Nic23; vd Klundert, Joris24 on behalf of the ENCKEP COST Action
Transplantation: September 21, 2018 - Volume Online First
Update: here's the published reference and link:
Biró, P., Haase-Kromwijk, B., Andersson, T., Ásgeirsson, E. I., Baltesová, T., Boletis, I., ... & van der Klundert, J. (2019). Building kidney exchange programmes in Europe—an overview of exchange practice and activities. Transplantation, 103(7), 1514.