If lesion was previously irradiated, a biopsy must be performed ≥ 6 weeks after completion of radiotherapy and viable neuroblastoma must be demonstrated [clinicaltrials_resource:183a74a98fde4d33fabe627df4543d0a]

If lesion was previously irradiated, a biopsy must be performed ≥ 6 weeks after completion of radiotherapy and viable neuroblastoma must be demonstrated [clinicaltrials_resource:183a74a98fde4d33fabe627df4543d0a]