Ballestero, Matheus Fernando Manzolli, and Ricardo Santos de Oliveira. 2022. “Prof. Dr. Willian Harkness 1955-2021”. Archives of Pediatric Neurosurgery 4 (2(May-August). Ribeirão Preto, Brazil:e1492022. https://doi.org/10.46900/apn.v4i2(May-August).149.