Spatial variability of the median age index by type for the population of the Middle Euphrates governorates for two years (1997 and 2020). cbej [Internet]. 2024 Jul. 25 [cited 2026 Jun. 4];1(عدد خاص):542-63. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/11708