The at-risk registers in severe asthma (ARRISA) study: a cluster-randomised controlled trial examining effectiveness and costs in primary care
Jane Rebecca Smith, Michael J Noble, Stanley Musgrave, Jamie Murdoch, Gill M Price, Garry R Barton, Jennifer Windley, Richard Holland, Brian DW Harrison, Amanda Howe, David B Price, Ian Harvey, Andrew M Wilson
Thorax Dec 2012, 67 (12) 1052-1060; DOI: 10.1136/thoraxjnl-2012-202093