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Results 1 - 2 of 2 for Citric acid
  1. Kidney Tests (National Library of Medicine)  
    You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. Your kidneys filter and clean your blood, taking out waste ...
    https://medlineplus.gov/kidneytests.html - Health Topics
  2. Kidney Stones (National Library of Medicine)  
    A kidney stone is a solid piece of material that forms in the kidney from substances in the urine. It may be as small as a grain of sand or as large as ...
    https://medlineplus.gov/kidneystones.html - Health Topics