Prevalence and determinants of under-five mortality (U5M) in low-and lower -middle-income countries: Evidence from recent demographic and health surveys - Md. Alamgir Sarder; Tabassum Mehedi; Benojir Ahammed; Md. Khairul Islam; Subarna Kundu; Murfia Muna; Maliha Mahajabin (PLoS ONE, 2025)