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2. Conservation and restoration of silver objects - Wikipedia

   en.wikipedia.org/wiki/Conservation_and...

   Whether silver plating or pure silver, the composite of the metal will tarnish when exposed to air and sulfur. Tarnish is a chemical reaction on the surface of metal (copper, brass, silver, etc.) and causes a layer of corrosion. In the case of silver tarnish, the silver combines with sulfur and forms silver sulfide (Ag 2 S), which is

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4. PacifiCare Health Systems - Wikipedia

   en.wikipedia.org/wiki/PacifiCare_Health_Systems

   The predecessor of the company was founded in 1978 by Samuel J. Tibbitts as a subsidiary of the Lutheran Hospital Society of Southern California. [1] PacifiCare was incorporated in 1983.

5. Medical uses of silver - Wikipedia

   en.wikipedia.org/wiki/Medical_uses_of_silver

   Silver nitrate is also used in certain laboratory procedures to stain cells. As it turns them permanently a dark-purple/black color, in doing so increasing individual cells' visibility under a microscope and allowing for differentiation between cells, or identification of irregularities. Silver is also used in bone prostheses and cardiac ...

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7. Home care in the United States - Wikipedia

   en.wikipedia.org/wiki/Home_care_in_the_United_States

   Outpatient elder care. Home care (also referred to as domiciliary care, social care, or in-home care) is supportive care provided in the home.Care may be provided by licensed healthcare professionals who provide medical treatment needs or by professional caregivers who provide daily assistance to ensure the activities of daily living (ADLs) are met.