title: Homage to Janus: looking backward and forward.
authors.affiliation: Department of Social Medicine, Montefiore Medical Center and Albert Einstein Medical College, Bronx, New York, USA. vsidel@igc.org
authors.forename: Victor W
authors.initials: VW
authors.lastname: Sidel
authors.forename: Barry S
authors.initials: BS
authors.lastname: Levy
mesh_terms: D000223:Adaptation, Psychological; D003469:Culture; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D038622:Internationality / Q000266:history; D010506:Periodicals as Topic / Q000266:history*; D012935:Social Justice / Q000266:history; D013534:Survival; D014857:Warfare