The condition is congenital and characterized by a malformation of the big toe that is present at birth .

这是一种先天性疾病，其特征为大脚趾天生畸形。

Primary study of comparative imageology in arteriovenous malformation of brain .

脑动静脉畸形的比较影像学初步研究。

Pathologic bases and imaging analyses of congenital duplication malformation of urinary system .

泌尿系统先天性重复畸形的病理基础及影像学分析。

Malformation of twin : concordant and discordant .

双胎畸形：一致性和不一致性。

Infants died of suddenness increased , congenital malformation is still an important problem .

意外死亡儿童增多，较多的先天畸形死亡仍是重要问题。