There is an error in reference 5. The correct reference is: Zelle DM, Corpeleijn E, Stolk RP, de Greef MH, Gans RO, van der Heide JJH, et al. Low physical activity and risk of cardiovascular and all-cause mortality in renal transplant recipients. Clinical Journal of the American Society of Nephrology. 2011; 6(4): 898–905. doi: 10.2215/CJN.03340410 PMID: 21372213.
Authors: Edwin J van Adrichem; Marion J Siebelink; Bart L Rottier; Janneke M Dilling; Greetje Kuiken; Cees P van der Schans; Erik A M Verschuuren Journal: PLoS One Date: 2015-11-25 Impact factor: 3.240