Objective In 2012,the Ministry of Health and the Standardization Administration of China had issued the new Blood stations technology operation procedures . In order to adapt to the new rules,Jiangsu Province Blood Center readjusted the blood services quality control laboratory system of quality assessment( EQA) . To improve the quality and detection level of the new system in all the blood stations in Jiangsu province,and to improve the comparability of test results. Methods Quality control samples were a...