[1] Oslo Univ Hosp, Div Radiol & Nucl Med, Oslo, Norway
[2] Univ Oslo, Fac Med, Inst Clin Med, Oslo, Norway
[3] Vestfold Hosp Trust, Dept Radiol, Tonsberg, Norway
[4] Hudkraeftklinikken, Copenhagen, Denmark
[5] Oslo Metropolitan Univ, Fac Hlth Sci, Dept Nursing & Hlth Promot, Oslo, Norway
[6] Oslo Univ Hosp, Dept Res & Dev, Div Emergencies & Crit Care, Oslo, Norway