[1] St Olavs Univ Hosp, Oslo Univ Hosp, Dept Canc Res & Mol Med, Fac Med, Trondheim, Norway
[2] Norwegian Univ Sci & Technol, Univ Trondheim Hosp, St Olavs Hosptal, Dept Orthopead Surg,Dept Neurosci, Trondheim, Norway
[3] Oslo Univ Hosp, Dept Pathol, Dept Opt Sci & Technol, Oslo, Norway
[4] Fudan Univ, Shanghai, Peoples R China