Changes in haematological indices among children with sickle cell disease on hydroxyurea treatment for at least 1 year: A cohort study - Stephen Emuli; Crispus Tegu; Faith Oguttu; Ritah Nantale; Paul Ochieng; George Passi; Julian Abeso; Joan Wamulugwa; Milton W. Musaba; Ruth Namazi; Sarah Kiguli; David Mukunya (PLoS ONE, 2025)