“…However, there is a lack of understanding between GPs and practice nurses relating to clearly defined roles which can contribute to confusion and challenges in the general practice setting (Phillips et al, 2008). Expansion of the PN role can sometimes be challenged by the small business nature of Australian general practice mixed with the GPs' attitudes and perceptions towards the hierarchal roles between doctors and nurses (Halcomb, Patterson, & Davidson, 2006;Phillips et al, 2007;Phillips, et al, 2008). Some barriers to utilising PNs that have been identified in the literature include a lack of training, poor GP understanding of nursing roles, liability concerns, billing structure within the practice, lack of professional nursing standards, PN employment costs, part time or casual employment and lack of space (Gibson & Heartfield, 2005;Halcomb, Davidson, Griffiths, & Daly, 2008;Phillips, et al, 2008).…”