天数

Clinical and histologic study of normal and regenerated gingival tissue in dogs.

临床和病理研究正常和牙龈组织再生的实验研究。

In more than 70 countries, same-sex relationships are illegal. In nine countries, the penalty is death.

在70多个国家，同性恋是非法的。9个国家，同性恋可被判死刑。