Research was initially performed on animals or patients under anesthesia.

Hospital laboratories are attached to a hospital, and perform tests on patients.

During his career he performed over 400 operations on epileptic patients.

Doctors around the world are using sophisticated robots to perform surgical procedures on patients.

The procedure, Incidentally, can and has been performed on patients undergoing brain surgery.

Medical photography is commonly performed on hospitalized patients with their consent.

In addition, they have performed genetic analysis on patients with breast and ovarian cancer.

Typically, it is performed on patients who have failed to respond to other forms of treatment.

The university subsequently banned him from performing other experiments on patients.

He performs such fat transfers on patients in their 20's to early 30's.