Rai P, Okhomina VI, Kang G, Akil N, Towbin JA, Hankins JS, Beasley G. The effects of cardio-selective β blockade on diastolic dysfunction in children with sickle cell disease. Haematologica 2023;108(2):594-598; https://doi.org/10.3324/haematol.2022.281428.