Open-heart
surgery

Cardiac
pacemakers

Heart pumps

Cortisone discovery

Diet-heart disease
connection

Anesthesia monitors

Heart valves

The Green Revolution

Bone marrow
transplants

Pancreas transplants

Cancer prevention

Brain science

Bioartificial liver

Alzheimer mouse

Gene therapy

Minnesota Firsts Photo Essay: http://www.mbbnet.umn.edu/firsts/