During the original show up through the 1970s, the show primarily covered Dr. Steve Hardy (John Beradino) and his friend, Nurse Jessie Brewer (Emily McLaughlin).
A biopsy is the removal of a sample of tissue or cells so that they can be examined by a pathologist, usually under a microscope. A specialist trained to examine a sample of tissue for signs and extent of disease under a microscope is called a pathologist.
A skin biopsy is the removal of a piece of skin for the purpose of further examination in the laboratory using a microscope. Skin biopsies are performed to diagnose a number of conditions. Biopsies are not meant to actually treat a skin condition.