Sputum is defined as a dense and sticky substance secreted from the mucous tissues that cover various parts of the respiratory system such...
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Calcium is a chemical element in the periodic table of the elements, and it is an alkaline earth mineral, light gray color, and is used as...
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Potassium is one of the essential minerals that you must get if you do not want to feel tired and stressed, and because it is one of the n...
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