TY - JOUR T1 - Developing a summary hospital mortality index: Retrospective analysis in English hospitals over five years JO - BMJ Online PY - 2012/03/01 AU - Campbell MJ AU - Jacques RM AU - Fotheringham J AU - Maheswaran R AU - Nicholl J ED - DO - DOI: 10.1136/bmj.e1001 VL - 344 IS - 7848 Y2 - 2025/11/29 ER -