?:authorAffiliation
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[\'Spine Clinic and Neurosurgery Department, The American-British Cowdray Medical Center IAP, Mexico City, Mexico. Electronic address: neurojass1@hotmail.com.\', \'Spine Surgery and Neurosurgery Department, University Children\'s Hospital of San José, Bogota, Colombia.\', \'Neurosurgery Department, San Juan De Dios University Hospital, Tarija, Bolivia.\', \'Neurosurgery Department, The Padilla Hospital of Tucuman, Tucuman, Argentina.\', \'Neurosurgery Department, Italian Hospital of Buenos Aires, Buenos Aires, Argentina.\', \'Neurosurgery Department, The American-British Cowdray Medical Center IAP, Mexico City, Mexico.\', \'Spine Clinic and Neurosurgery Department, The American-British Cowdray Medical Center IAP, Mexico City, Mexico.\']
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