Dermatology.
Disease processes occur in the skin and its appendages, as in other organs, against the background of age-related and degenerative changes. The skin is additionally influenced by the cumulative effect of environmental factors, especially solar radiation.
D000368:Aged; D000375:Aging / Q000502:physiology*; D006801:Humans; D012871:Skin Diseases / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000139:chemically induced*; D012879:Skin Physiological Phenomena; D013472:Sunlight / Q000009:adverse effects