患儿,男,11个月,面色苍白2个月,牛奶喂正养,未添食,RBC 2.5 X104/L,Hb80g/L,MCV67fl,MCH25pg,WBC和PLT正常网织红细胞0.012,其最可能的诊断是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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