title: The effect of HB Ag on Nicotiana sylvestris plants.
mesh_terms: D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D007106:Immune Sera; D066298:In Vitro Techniques; D010935:Plant Diseases / Q000276:immunology; D010947:Plants, Toxic; D014026:Nicotiana
chemical_list: D006511:Hepatitis B Antigens; D007106:Immune Sera