title: [Immune system and immunodeficiency].
authors: M R
authors: MR
authors: Sapin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007107:Immune System / Q000502:physiology*; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D007223:Infant; D007231:Infant, Newborn; D008214:Lymphocytes / Q000276:immunology; D008297:Male; D008875:Middle Aged