研究目的：探讨导致先天性小耳畸形发生的各种危险因素，为小耳畸形的预防提供理论依据。
Objectives: To identify the risk factors associated with congenital microtia, and put forward its preventive measures.
研究目的：探讨导致先天性小耳畸形发生的各种危险因素，为小耳畸形的预防提供理论依据。
Objectives: To identify the risk factors associated with congenital microtia, and put forward its preventive measures.
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