title: Synthetic alpha-methylene-gammabutyrolactone, immunological activity.
mesh_terms: D015107:4-Butyrolactone / Q000276:immunology*; D005663:Furans / Q000276:immunology*; D006801:Humans; D008958:Models, Molecular
chemical_list: D005663:Furans; D015107:4-Butyrolactone