title: Letter: The thymus and sudden unexplained infant death.
mesh_terms: D000818:Animals; D003645:Death, Sudden; D006168:Guinea Pigs; D006801:Humans; D007223:Infant; D008206:Lymphatic Diseases; D008212:Lymphocyte Depletion; D008231:Lymphopenia / Q000150:complications / Q000175:diagnosis; D013950:Thymus Gland / Q000276:immunology