title: Occipital nerve blocks and managed care: a review of the reviewers.
authors.forename: R W
authors.initials: RW
authors.lastname: Evans
authors.forename: G D
authors.initials: GD
authors.lastname: Yannakakis
mesh_terms: D000328:Adult; D006261:Headache / Q000191:economics* / Q000628:therapy*; D006801:Humans; D007345:Insurance Claim Review; D008297:Male; D008329:Managed Care Programs / Q000191:economics* / Q000592:standards / Q000706:statistics & numerical data; D009407:Nerve Block / Q000191:economics*; D010148:Intractable Pain / Q000191:economics / Q000628:therapy; D018024:Peer Review, Health Care; D014600:Utilization Review