“…The need to negotiate a hierarchy of 'gatekeepers' to access children in hospitals and the difficulty of this (Stalker et al, 2004) -Managing ethical considerations, power relations between researcher and participants and empowering children in the research process (Alderson, 1993(Alderson, , 1995Bricher, 1999Bricher, , 2000Morison et al, 2000) -The importance of the social and physical context of the interviews and the need for privacy (Mauthner, 1997;Miller, 2000;Morison et al, 2000) -The challenging nature of the research topic for participants and the perceived benefits and threats of the research (Morison et al, 2000) -The influence of parents or 'significant adults' on children's participation (Morison et al, 2000;Sandbaek, 1999) All of these considerations remain relevant to participatory research in health care contexts and most of these challenges are relevant to the experiences of both Said and Bishop in their respective research projects.…”