title: [On the problem of age differences in the antigenic properties of the skin].
mesh_terms: D000375:Aging / Q000502:physiology*; D003165:Complement System Proteins; D006801:Humans; D012867:Skin; D012879:Skin Physiological Phenomena
chemical_list: D003165:Complement System Proteins
keywords: AGING/physiology; COMPLEMENT; SKIN/physiology