--subdivision Aging under individual organs and regions of the body and individual animals and groups of animals, e.g. Heart--Aging; Foot--Aging; Cattle--Aging; Fishes--Aging
Ageism -- United States -- History. / https://id.loc.gov/authorities/subjects/sh2009114092 https://id.loc.gov/authorities/subjects/sh99005024 : Macnicol, John.
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