He isn't above using the main characters in medical research.

Any material used in such research, however, will never be replaced.

It has been used safely in research for up to 23 months.

They are used in research so we can figure out what works.

It's been used safely in research for up to four months.

It is also used in research associated with traditional medicine.

Often a range of measures is used in research and diagnosis.

It has a number of physiological effects and is used in medical research.

This number makes a very small fraction of all animals used in research.

This design is used in medical, psychological and biological research to name a few areas.