text_1: 血清 补体 因子 3 为 101 mg / dL ( 正常 范围 , 70 ~ 156 ) , 补体 因子 4 为 81 mg / dL ( 正常 范围 , 15 ~ 56 ) .
  
text_2: the serum complement factor 3 was 101 mg per deciliter ( normal range , 70 to 156 ) , and the complement factor 4 was 81 mg per deciliter ( normal range , 15 to 56 ) .
  