Siregar, Ahmad, Z. Siregar, M. Lubis, and H. Siregar. 2017. “Results of Treatment of Hydrocephalus in Tembakau Deli Hospital, Medan, Indonesia”. Paediatrica Indonesiana 37 (1-2), 31-6. https://doi.org/10.14238/pi37.1-2.1997.31-6.