Background: Hearing impairment in children can hamper learning process in them.
Background: Hearing impairment in children can hamper learning process in them.
摘要背景：小儿的突发性耳聋临床上罕见。
Background: Hearing impairment in children can hamper learning process in them.
摘要背景：小儿的突发性耳聋临床上罕见。