@book{263325,
	author = {National Cancer Institute (U.S.)},
	title = {Histologic and ultrastructural studies of tumor regression in inbred guinea pigs after intralesional injection of mycobacterium bovis (BCG) 1, 2.},
	year = {19--?]},
	address = {[Washington, D.C.,},
	note = {[Reprinted from NCI monograph no. 39].}
}