title: Molecular mechanisms in blocked ontogeny and retrogenesis.
mesh_terms: D000941:Antigens; D002454:Cell Differentiation; D004247:DNA; D005333:Fetus / Q000276:immunology; D005796:Genes; D005815:Genetic Code; D005838:Genotype; D006801:Humans; D007114:Immunization; D008954:Models, Biological; D008967:Molecular Biology; D009024:Morphogenesis; D009369:Neoplasms / Q000276:immunology; D009384:Paraneoplastic Endocrine Syndromes / Q000235:genetics*; D014176:Protein Biosynthesis
chemical_list: D000941:Antigens; D004247:DNA