Fig. 5From: Hydroxyurea Optimization through Precision Study (HOPS): study protocol for a randomized, multicenter trial in children with sickle cell anemiaHOPS study dosing calculator. The HOPS study website includes a dosing calculator to allow for easy dose adjustments. Study personnel enter the Site # and Participant ID (a); current laboratory results, weight, and dosing information (b); and the calculator provides the new recommended dose (c)Back to article page