Complex sentence: This idea was reinforced by the Clark Committee of 1967, led by Donald Clark, the committee developed a practitioner-oriented graduate training program in 1968, and presented it at the Vail Conference in 1973.
Split into simpler sentences: This idea was reinforced by the Clark Committee of 1967. Led by Donald Clark, the committee developed a practitioner-oriented graduate training program in 1968, and presented it at the Vail Conference in 1973.