- Fasting plasma total homocysteine levels and mortality and allograft loss in kidney transplant recipients: a prospective study. Winkelmayer, W.C., Kramar, R., Curhan, G.C., Chandraker, A., Endler, G., Födinger, M., Hörl, W.H., Sunder-Plassmann, G. J. Am. Soc. Nephrol. (2005)