<qa>  What is the prophylaxis of GVHD?- Graft-vs-host disease GVHD prophylaxis: Patients receive tacrolimus orally twice daily or IV continuously beginning on day -2 and continuing for approximately for 6-12 months after transplantation. Patients also receive mycophenolate mofetil orally or IV twice daily on days 0 to 60 and methotrexate IV on days 1, 3, 6, and 11. 