- Clinical follow-up : Potential toxicities associated with Aranesp or Venofer will be carefully monitored per the institution's standards. Blood pressure will be recorded around days 28, 42, 56, 70, 84, 98, 112, and 126 after the transplant. Serious adverse events (such as infections, bleeding, disease progression, any hospitalization) will be recorded. In case of serious adverse event judged as potentially related to Aranesp or Venofer, the principal investigator will be immediately notified so as to jointly decide on possible discontinuation of either drug.