--subdivision Abnormalities under individual animals and groups of animals and individual organs and regions of the body, e.g. Cattle--Abnormalities; Fishes--Abnormalities; Heart--Abnormalities; and subdivision Spermatozoa--Abnormalities under individual animals and groups of animals, e.g. Cattle--Spermatozoa--Abnormalities; Fishes--Spermatozoa--Abnormalities
