familial cretinism

例句：

1. 1.The condition is characterized by a combination of intellectual disability and physical deformity.
   这种状况的特点是智力障碍和身体畸形的结合。
2. 2. This familial cretinism is caused by a rare genetic mutation.
   这种家族性白痴症是由一种罕见的遗传突变引起的。
3. 3. The affected individuals often exhibit delayed developmental milestones and behavioral problems.
   受影响的人往往表现出发育里程碑的延迟和行为问题。