Kathleen M McElwaine, Megan Freund, Elizabeth M Campbell, Jenny Knight, Carolyn Slattery, Emma L Doherty, Patrick McElduff, Luke Wolfenden, Jennifer A Bowman, Paula M Wye, Karen E Gillham, John H Wiggers
BMC Health Serv Res. 2011; 11: 354. Published online 2011 December 30. doi: 10.1186/1472-6963-11-354