Prevalence and determinants of post-neonatal mortality in East Africa: a multilevel analysis of the recent demographic and health survey - Zegeye, Alebachew Ferede; Asmamaw, Desale Bihonegn; Negash, Wubshet D.; Belachew, Tadele Biresaw; Fentie, Elsa Awoke; Kidie, Atitegeb Abera; Baykeda, Tsegaw Amare; Fetene, Samrawit Mihret; Addis, Banchlay; Maru Wubante, Sisay; Endawkie, Abel; Tamir, Tadesse Tarik (Frontiers in Pediatrics, 2025)