title: THE LS-ANTIGEN OF VACCINIA : I. INHIBITION OF L- AND S-ANTIBODIES BY SUBSTANCES IN TREATED VACCINE DERMAL FILTRATE.
abstract: Experimental data are presented which may be interpreted as follows. The heat-labile (L) and heat-stable (S) antigens of vaccinia occur in nature as a complex consisting of a single substance with two serologically active parts, each of which may be degraded independently of the other.
authors.affiliation: Hospital of The Rockefeller Institute for Medical Research.
authors.forename: J E
authors.initials: JE
authors.lastname: Smadel
authors.forename: T M
authors.initials: TM
authors.lastname: Rivers