Involution of the human thymus.
D000375:Aging; D002675:Child, Preschool; D004804:Eosinophils; D005260:Female; D005313:Fetal Death; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008407:Mast Cells; D009929:Organ Size; D010950:Plasma Cells; D011247:Pregnancy; D012155:Reticulin / Q000032:analysis; D013950:Thymus Gland
D012155:Reticulin