Maybe do a search on it? I remember someone saying they went to a Mayo clinic and that the neurologist matter-of-factly asked if they wanted an MRV too. Would that it had been that easy at my clinic!!
(My memory is vague, though, so the details on this might not be right....)
"However, the truth in science ultimately emerges, although sometimes it takes a very long time," Arthur Silverstein, Autoimmunity: A History of the Early Struggle for Recognition