Such as some types of medicines used to treat the human drug trials that have come before, so the least danger to humans. Need to study, and the possibility of drugs used as treatment and secure as possible.
Such as the invention of some drugs used to treat the human animal to be brought to trial before a hazard to humans is minimal. You must study the possibility of drugs used to treat the most practical and safe.
as invented some type of up to treat human must take the animal experimental medicine before to harm to humans is minimal. The study and the possibility of drug use that the real and most secure .