[1] Karolinska Inst, Childhood Canc Res Unit, Dept Womens & Childrens Hlth, S-17176 Stockholm, Sweden
[2] Dalarna Univ, Sch Educ Hlth & Soc, Falun, Sweden
[3] Uppsala Univ, Ctr Res Eth & Bioeth, Uppsala, Sweden
[4] Visby Lasarett, Oncol Unit, Visby, Sweden
[5] Karolinska Univ Hosp, Dept Oncol Pathol, Stockholm, Sweden
[6] Sahlgrens Acad, Dept Oncol, Gothenburg, Sweden
[7] Ersta Skondal Univ Coll, Palliat Res Ctr, Stockholm, Sweden