[Comment on the study «Criteria for education and training in Interventionist-Neuro-Interventionism Neuroradiology, agreed by the Spanish Interventionist Neuroradiology Group of the Spanish Neuroradiology Society and the Expert Group of the Spanish Neurosurgery and Neurology. A basis for obtaining Accreditation in centres and specialists in Interventionist-Neuro-Interventionism Neuroradiology», by F. Alén et al].