TY - JOUR T1 - Testing survey methodology to measure patients' experiences and views of the emergency and urgent care system: telephone versus postal survey. JO - BMC Med Res Methodol UR - http://eprints.whiterose.ac.uk/11206/ PY - 2010/06/09 AU - O'Cathain A AU - Knowles E AU - Nicholl J ED - DO - DOI: 10.1186/1471-2288-10-52 VL - 10 SP - 52 Y2 - 2025/06/27 ER -