A beach umbrella alone may not provide sufficient protection for extended UV exposure. #dermatology #dermatologia https://twitter.com/jamaderm/status/840933175400452096

Tweet #841171835626631169

A beach umbrella alone may not provide sufficient protection for extended UV exposure. #dermatology #dermatologia

Sun Protection by Beach Umbrella vs High SPF Sunscreen https://t.co/tZNO9zsMGD

— JAMA Dermatology (@JAMADerm) March 12, 2017

From Twitter for iPhone 1:19am Mar 13 2017 — ¶