title: The meaning of systems biology.
authors.affiliation: Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115. Electronic address: marc@hms.harvard.edu.
authors.forename: Marc W
authors.initials: MW
authors.lastname: Kirschner
mesh_terms: D000818:Animals; D001671:Biochemistry / Q000379:methods / Q000639:trends; D005075:Biological Evolution; D017124:Conserved Sequence / Q000502:physiology; D004777:Environment; D005786:Gene Expression Regulation / Q000235:genetics*; D014644:Genetic Variation / Q000235:genetics*; D005823:Genetics / Q000639:trends; D006801:Humans; D008967:Molecular Biology / Q000379:methods / Q000639:trends*; D049490:Systems Biology / Q000639:trends*