RT Journal Article SR Electronic T1 Emergency medical readmission: long-term trends and impact on mortality JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 410 OP 410 DO 10.7861/clinmedicine.11-4-410 VO 11 IS 4 A1 Hemantha Chandrasekara A1 Jan Marsh A1 Sarah O'brien A1 Kevin Hardy YR 2011 UL http://www.rcpjournals.org/content/11/4/410.1.abstract