title: T and B cell ontogeny and phylogeny.
authors.affiliation: Royal Postgraduate Medical School, London, UK.
authors.forename: M A
authors.initials: MA
authors.lastname: Ritter
authors.forename: M
authors.initials: M
authors.lastname: Larché
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000166:cytology*; D002454:Cell Differentiation; D006133:Growth Substances / Q000502:physiology; D006801:Humans; D007108:Immune Tolerance / Q000502:physiology; D008285:Major Histocompatibility Complex / Q000502:physiology; D013601:T-Lymphocytes / Q000166:cytology*; D013950:Thymus Gland / Q000502:physiology
chemical_list: D006133:Growth Substances