The established guidelines for medical doctors conducting biomedical research involving human subjects.

Answer;

WHO

The WHO established guidelines for medical doctors conducting biomedical research involving human subjects.

Explanation;

-The World Health Organization (WHO) plays an essential role in the global governance of health and disease; due to its core global functions of establishing, monitoring and enforcing international norms and standards, and coordinating multiple actors toward common goals.

- The functions of WHO may be summed up as; to act as a directing and coordinating authority on international health work, to ensure valid and productive technical cooperation, and to promote research.

"a.) well–developed vascular system."