PREhabilitation of CAndidates for REnal Transplantation (PreCareTx) study: protocol for a hybrid type I, mixed method, randomised controlled trial oleh Stephan J L Bakker, Stefan P Berger, R Dekker, Adelita Ranchor, Coby Annema, Robert A Pol, Evelien E Quint, Avril J Haanstra, Yvonne van der Veen, Heleen Maring, Evelyn Finnema, C Annema, EJ Finnema, AV Ranchor, MJ Schroevers, AJ Haanstra, Y van der Veen, SP Berger, SJL Bakker, CFM Franssen, AE de Joode, R Westerhuis, H Maring, EE Quint, RA Pol, JM Klaase, SML Niamut