我县首次发现4例β地中海贫血(以下简称β地贫)。目前主要靠测A_2定量最有价值。结合家系调查以及血液学检查,以资确诊β地贫遗传类型。β地贫是部分β链合成受抑而产生的病,故称β地贫。本组四个家系β地贫表现三种形式:(1)单纯 My county found for the first time in 4 cases of β-thalassemia (hereinafter referred to as β thalassemia). At present, mainly by measuring A_2 quantitative most valuable. Combined with pedigree investigation and hematology examination, we can diagnose the genetic type of thalassemia. β thalassemia is part of the β-chain synthesis inhibition of the disease, so that β thalassemia. This family of four family β-thalassemia performance in three forms: (1) simple