SilvaW.M., BezerraW.A. dos S. and NogueiraE.B.S. 2020. Profile of toxicity to clinical treatment with Hydroxyurea in patients with anemia falciforme in the state of Piauí. Electronic Journal Collection Health. 40 (Feb. 2020), e2801. DOI:https://doi.org/10.25248/reas.e2801.2020.