title: The halo. A spinal skeletal traction fixation device. By Vernon L. Nickel, Jacquelin Perry, Alice Garrett, and Malcolm Heppenstall, 1968.
authors.forename: V L
authors.initials: VL
authors.lastname: Nickel
authors.forename: J
authors.initials: J
authors.lastname: Perry
authors.forename: A
authors.initials: A
authors.lastname: Garrett
authors.forename: M
authors.initials: M
authors.lastname: Heppenstall
mesh_terms: D005592:Fracture Fixation / Q000266:history*; D006257:Head; D049673:History, 20th Century; D006801:Humans; D009984:Orthopedic Fixation Devices / Q000266:history*; D009985:Orthopedics / Q000379:methods; D014143:Traction / Q000295:instrumentation