The skin, a first level lymphoid organ?
D000818:Animals; D000941:Antigens; D005075:Biological Evolution; D002060:Bursa of Fabricius / Q000276:immunology; D004431:Ear, External / Q000033:anatomy & histology; D004848:Epithelium / Q000276:immunology; D005088:Exocrine Glands / Q000033:anatomy & histology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007413:Intestinal Mucosa / Q000276:immunology; D008010:Lichen Planus / Q000473:pathology; D008180:Lupus Erythematosus, Systemic / Q000473:pathology; D008214:Lymphocytes / Q000276:immunology / Q000378:metabolism; D008221:Lymphoid Tissue / Q000276:immunology*; D009154:Mutation; D009578:Nitrobenzenes; D011247:Pregnancy; D012867:Skin / Q000276:immunology*; D012882:Skin Tests; D013545:Sweat Glands / Q000033:anatomy & histology; D013936:Thymidine / Q000378:metabolism; D013950:Thymus Gland / Q000276:immunology; D014316:Tritium
D000941:Antigens; D009578:Nitrobenzenes; D014316:Tritium; D013936:Thymidine