title: Presidential Address: Challenges for the second Century.
authors.forename: J David
authors.initials: JD
authors.lastname: Richardson
mesh_terms: D005544:Forecasting; D013502:General Surgery / Q000193:education* / Q000592:standards*; D006801:Humans; D009937:Organizational Objectives; D058996:Quality Improvement; D012955:Societies, Medical; D014481:United States