[1] Univ Oslo, Inst Hlth & Society, Fac Med, Ctr Med Eth, Oslo, Norway
[2] Univ Southeastern Norway, Fac Hlth & Social Sci, Kongsberg, Norway
[3] Johns Hopkins Univ, Sch Med, OHSR Compliance Monitoring Program, Baltimore, MD USA
[4] Univ Oslo, Inst Hlth & Society, Fac Med, Ctr Med Eth, Box 1130,Blindern, N-0318 Oslo, Norway