[1] Erasmus MC Canc Inst, Dept Dermatol, Rotterdam, Netherlands
[2] Netherlands Comprehens Canc Ctr IKNL, Dept Res, Utrecht, Netherlands
[3] Dept Vet Affairs Med Ctr, Ctr Dermatoepidemiol, Providence, RI USA
[4] Brown Univ, Dept Dermatol & Epidemiol, Providence, RI 02912 USA
[5] Univ Bristol, Sch Social & Community Med, Ctr Acad Primary Care, Bristol, Avon, England
[6] QIMR Berghofer Med Res Inst, Dept Populat Hlth, Brisbane, Qld, Australia
[7] Univ Queensland, Sch Publ Hlth, Brisbane, Qld, Australia