The use of animals as investigational subjects.

Facilities equipped to carry out investigative procedures.

Hospital facilities equipped to carry out investigative procedures.

Techniques used to carry out clinical investigative procedures in the diagnosis and therapy of disease.

'Laboratory animals' are non-human creatures that are intentionally used in scientific research, testing, and education settings to investigate physiological processes, evaluate the safety and efficacy of drugs or medical devices, and teach anatomy, surgical techniques, and other healthcare-related skills.