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  • At least 170,000 cases of skin cancer each year are linked to indoor tanning, according to an analysis published online Tuesday in the British medical journal BMJ.

  • Indoor tanners are 67% more likely to develop the more serious squamous-cell carcinomas compared with those who have never tanned indoors, says Eleni Linos, an assistant professor of dermatology at the University of California-San Francisco and senior author of the study.
  • That suggests indoor tanning is responsible for about 5% of non-melanoma skin cancers, the most commonly diagnosed cancers in the USA, says Thomas Glynn, director of cancer science and trends at the American Cancer Society.