thirteen branches of medicine

例句：

1. 1.The medical team was divided into three groups to treat the patients.
   医疗团队被分为三个小组来治疗病人。
2. 2. The study covered thirteen branches of medicine.
   这项研究涵盖了医学的十三个分支。
3. 3.The book covers thirteen branches of medicine.
   这本书涵盖了医学的十三个分支。