Deformability of transfused red blood cells is a potent effector of transfusion‐induced hemoglobin increment: A study with β‐thalassemia major patients. Issue 9 (19th July 2017) - Barshtein, Gregory; Goldschmidt, Neta; Pries, Axel R; Zelig, Orly; Arbell, Dan; Yedgar, Saul