Methods From 990 to 00 , 9 patients with pectus carinatum were treated, whose ages ranged from years and months to years.
Methods From 990 to 00 , 9 patients with pectus carinatum were treated, whose ages ranged from years and months to years.
方法 990年～ 0 0 年收治鸡胸患者9例,年龄 岁个月～岁。