School absenteeism among children and adolescents aged 6–19 years with sickle cell disease in Uganda: A comparative cross-sectional study - Juliane Peninah Nattimba; Sabrina Bakeera-Kitaka; Joseph Rujumba; Ruth Namazzi; Ivan Segawa; Kizza Lubega; Alphonse Taban; Edison Mworozi; Phillip Kasirye; Deogratias Munube; Grace Ndeezi; Sarah Kiguli; et al. (PLoS ONE, 2026)