The plasma levels of CEA and CA19-9 were determined by microparticle enzyme-linked immunoassay (MEIA) before operation.
微粒子酶联免疫荧光法（MEIA）检测大肠癌患者术前血浆CEA、CA19-9水平。
The plasma levels of CEA and CA19-9 were determined by microparticle enzyme-linked immunoassay (MEIA) before operation.
微粒子酶联免疫荧光法（MEIA）检测大肠癌患者术前血浆CEA、CA19-9水平。
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