Dr. Folkman
In 1971, Dr. Judah Folkman postulated that a factor or protein must exist that a tumor needs to survive and grow known as Tumor Angiogenesis Factor (TAF) at the time. Today, we know of several factors such that act like a TAF conceived by our own Dr. Folkman!
The diagram below, from one of Dr. Folkman’s early works, showed the four points at which he hypothesized that tumor angiogenesis might be interrupted.
