DeVita 's results , presented in 1965 and 1970 were initially viewed with considerable disbelief.https : // www.everydayhealth.com/cancer/state-cancer-national-cancer-institute /
DeVita 's results , viewed in 1965 and 1970 , were initially presented with considerable disbelief : https : // www.everydayhealth.com/cancer/state-cancer-national-cancer-institute /