title: The gut microbiota: a complex ecosystem.
authors.forename: B
authors.initials: B
authors.lastname: Björkstén
mesh_terms: D000328:Adult; D001327:Autoimmune Diseases / Q000276:immunology / Q000382:microbiology / Q000517:prevention & control; D017753:Ecosystem; D041981:Gastrointestinal Tract / Q000276:immunology / Q000382:microbiology*; D006801:Humans; D016867:Immunocompromised Host; D007231:Infant, Newborn; D019936:Probiotics