How @Google, targeting tanning beds users is more effective than public health #skincancer messages @abbyohlheiser

Here's the study on targeting would-be tanners w/ @Google ads http://t.co/nxhQDmpSvM that @abbyohlheiser wrote about http://t.co/pgurR9rfD6

— JAMA Dermatology (@JAMADerm) October 12, 2015