@book{264987,
	author = {National Cancer Institute (U.S.)},
	title = {Objective 4, develop means prevent progression of precancerous cells to cancer, development of cancers from precancerous conditions, and spread of cancers from primary sites.},
	year = {1973]},
	series = {National cancer program},
	address = {[Washington, D.C.,},
	note = {(DHEW publication (NIH) 74-587.).}
}