microangiopathic hemolytic anemiaalloimmune hemolytic anemiaautoimmune hemolytic anemia causescongenital hemolytic anemiahereditary hemolytic anemiainherited hemolytic anemiaacquired hemolytic anemiachronic hemolytic anemiadefine hemolytic anemiaacute hemolytic anemiahemolytic anemia in dogshemolytic anemia test