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http://www.webmd.com/fitness-exercise/tc/dehydration-check-your-symptoms
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http://www.emedicinehealth.com/dehydration_in_adults/page3_em.htm
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http://www.thehealthsite.com/diseases-conditions/9-tips-to-prevent-dehydration-during-summer/
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https://my.clevelandclinic.org/health/articles/avoiding-dehydration
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https://www.cancercenter.com/cancer-types/skin-cancer/prevention
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https://www.cdc.gov/cancer/skin/basic_info/prevention.htm
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https://www.skincancerprevention.org/skin-cancer/prevention-tips
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https://www.skincancer.org/skin-cancer-prevention/
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https://www.mayoclinic.org/diseases-conditions/skin-cancer/symptoms-causes/syc-20377605
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https://www.cdc.gov/cancer/skin/basic_info/sun-safety.htm
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https://aahealth.org/sun-safety-and-water-safety/