H R Serrano2026-03-222026-03-22197910.1097/00006123-197902000-00016https://doi.org/10.1097/00006123-197902000-00016https://andeanlibrary.org/handle/123456789/71725Professor of Neurology and Neurosurgery, University “Mayor de San Andrés,” and Head, Neurosurgery and Neurology Department, Hospital Obrero, La Paz, BoliviaenNeurosurgeryMedicineNeurologyGeneral surgeryHead (geology)Neuroradiologyarticle