First, Do Less Harm: Confronting the Inconvenient Problems of Patient SafetyEach year, hospital acquired infections, prescribing and treatment errors, lost documents and test reports, communication failures, and other problems have caused thousands of deaths in the United States, added millions of days to patients' hospital stays, and cost Americans tens of billions of dollars. Despite (and sometimes because of) new medical information technology and numerous well intentioned initiatives to address these problems, threats to