Walter Michael Bortz II (born March 20, 1930) is an American physician and author who teaches medicine at Stanford University. He conducts research on aging and promotes the possibility of a 100-year lifespan.
Walter Michael Bortz II (born March 20, 1930) is an American physician and author who teaches medicine at Stanford University. He conducts research on aging and promotes the possibility of a 100-year lifespan. (en)
Walter Michael Bortz II (born March 20, 1930) is an American physician and author who teaches medicine at Stanford University. He conducts research on aging and promotes the possibility of a 100-year lifespan. (en)