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          <h1 id="HwContentTitle">Hormone</h1>
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            <p>A hormone, such as insulin or estrogen, is a substance released by
		  an organ or tissue that controls the activity of organs or cells in another
		  part of the body. The organs or glands that release hormones are part of the
		  endocrine system.</p>  <p>Hormones may also be taken as medications, such as birth control
		  pills or estrogen replacement therapy.</p>
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              <span class="HwInfoLabel">Last Updated:
            </span>May 14, 2008</p>
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              <span class="HwInfoLabel">Author:
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              <span class="HwInfoName">Sarah Marshall, MD - Family Medicine</span> &amp; <span class="HwInfoName">Siobhan M. Dolan, MD, MPH - Reproductive Genetics</span>
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