Split of radiation oncology from diagnostic radiology

Curious as to what was the impetus for radiation oncology to separate from the house of radiology? What were the key factors involved in the separation? Who were the key thought leaders in radiation oncology that led to the separation? Do you think that radiation oncology could have still been as successful if it were a subspecialty of radiology?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Radiation Oncology Source Type: forums