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Van der Linde R, Bogaerts S, Garofalo C, Blaauw E, De Caluwé E, Billen E, Spreen M.Van der Linde R, et al. Among authors: billen e.Int J Offender Ther Comp Criminol. 2020 Nov;64(15):1491-1513. doi: 10.1177/0306624X20909219. Epub 2020 Mar 2.Int J Offender Ther Comp Criminol. 2020.PMID: 32114842Free PMC article.
van Gorkom G, Billen E, Van Elssen C, van Gelder M, Bos G.van Gorkom G, et al. Among authors: billen e.EJHaem. 2021 May 26;2(3):440-448. doi: 10.1002/jha2.203. eCollection 2021 Aug.EJHaem. 2021.PMID: 35844710Free PMC article.
Billen EV, Christiaans MH, Lee J, van den Berg-Loonen EM.Billen EV, et al.Transplantation. 2009 Feb 27;87(4):563-9. doi: 10.1097/TP.0b013e3181949e37.Transplantation. 2009.PMID: 19307795
van den Berg-Loonen EM, Billen EV, Voorter CE, van Heurn LW, Claas FH, van Hooff JP, Christiaans MH.van den Berg-Loonen EM, et al. Among authors: billen ev.Transplantation. 2008 Apr 27;85(8):1086-90. doi: 10.1097/TP.0b013e31816b3ed1.Transplantation. 2008.PMID: 18431226