Several indices including hemoglobin (Hb), packed cell volume (PCV), serum iron (SI), serum ferritin (SF), free erythrocyte porphyrin (FEP) were measured at the beginning and end of the trial respectively.

• 分别于实验前后测定血红蛋白 (Hb)、全血红细胞压积 (PCV)、血清铁 (SI)、血清铁蛋白 (SF)、红细胞游离原卟啉 (FEP) ,并观察副作用发生情况。