Lessons learnt from attempting to assess the evidence base for a complex intervention introduced into New Zealand general practice
Margaret Horsburgh, Felicity Goodyear-Smith, Janine Bycroft, Faith Mahony, Dianne Roy, Denise Miller, Erin Donnell
Quality and Safety in Health Care Oct 2010, 19 (5) e50; DOI: 10.1136/qshc.2009.034439