TY - JOUR T1 - Why, and how, mixed methods research is undertaken in health services research in England: a mixed methods study. JO - BMC Health Serv Res UR - http://eprints.whiterose.ac.uk/3407/ PY - 2007/01/01 AU - O'Cathain A AU - Murphy E AU - Nicholl J ED - DO - DOI: 10.1186/1472-6963-7-85 VL - 7 SP - 85 Y2 - 2024/09/20 ER -