TY - JOUR T1 - Variation in the delivery of telephone advice by Emergency Medical Services: a qualitative study in three services JO - BMJ Quality and Safety UR - http://eprints.whiterose.ac.uk/138288/ PY - 2019/06/19 AU - O'Hara RA AU - Bishop-Edwards L AU - Knowles E AU - O'Cathain A ED - DO - DOI: 10.1136/bmjqs-2018-008330 PB - BMJ Publishing Group VL - 28 IS - 7 SP - 556 EP - 563 Y2 - 2025/07/08 ER -