*  immunization
  *  immunization, passive
  *  adoptive transfer
  *  immunotherapy, adoptive
  *  immunization schedule
  *  immunization, secondary
  *  immunotherapy, active
  *  vaccination
  *  mass immunization
  *  immunosuppression
  *  desensitization, immunologic
  *  graft enhancement, immunologic
  *  lymphocyte depletion
  *  transplantation conditioning
  *  radioimmunotherapy
  *  oncolytic virotherapy
  *  organotherapy
  *  tissue therapy