TY - JOUR T1 - Measuring the impact introducing NHS 111 online had on the NHS 111 telephone service and the wider NHS urgent care system : an observational study JO - BMJ Open PY - 2022/07/12 AU - Simpson RM AU - Jacques RM AU - Nicholl J AU - Stone T AU - Turner J ED - DO - DOI: 10.1136/bmjopen-2021-058964 PB - BMJ Publishing Group VL - 12 IS - 7 Y2 - 2024/12/26 ER -