Objective: To study the effective diagnostic methods and the basis of fetal congenital heart disease (CHD).
目的探讨胎儿先天性心脏病(先心病)的有效诊断方法及依据。
Objective: to investigate effective diagnosis and treatment methods of ectopic pregnancy.
目的：探讨异位妊娠的有效诊断及治疗方法。
Objective To explore the effective methods for analyse and manage of medical quality information.
目的探索医疗质量信息分析和管理更加有效的方法。
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