“…Pain experiences are subjective and often consist of sensory, emotional, cognitive and behavioural components (Committee on Psychosocial Aspects of Child and Family Health 2001, Matziou et al 2004, AMA 2007, Ballweg 2008, Trudeau et al 2009). The undertreatment of pain symptoms and the lack of pain assessment are major concerns in the paediatric population because of children's limited experiences and their ability to adequately express discomfort (Collins et al 2000, Anand 2001, Howard 2003, Stomberg et al 2003, Kokki 2004, Matziou et al 2004, Houlahan et al 2006, AMA 2007, Oakes et al 2008, Trudeau et al 2009). Thus, pain treatment and assessment in the paediatric population have received growing attention over the past two decades, even by the professional organisations: the APS and The Joint Commission (TJC) (AHCPR 1992, APS 1995, Committee on Psychosocial Aspects of Child and Family Health 2001, Gordon et al 2005, TJC 2007).…”