title: The thymus of marmots: spontaneous, natural seasonal thymectomy?
mesh_terms: D000818:Animals; D004847:Epithelial Cells; D005260:Female; D006605:Hibernation; D008214:Lymphocytes; D008297:Male; D012377:Rodentia / Q000502:physiology*; D012621:Seasons; D013950:Thymus Gland / Q000166:cytology / Q000502:physiology*