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	<title>Health Watchers&#039; News and Views &#187; Dr. David Zava</title>
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		<title>Progesterone and Breast Tenderness, Q&amp;A with Dr. David Zava</title>
		<link>http://www.healthwatchersnews.com/2009/11/progesterone-and-breast-tenderness-qa-with-dr-david-zava/</link>
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		<pubDate>Wed, 18 Nov 2009 00:06:30 +0000</pubDate>
		<dc:creator>Dr David Zava</dc:creator>
				<category><![CDATA[Bioidentical Hormones]]></category>
		<category><![CDATA[breast tenderness]]></category>
		<category><![CDATA[Dr. David Zava]]></category>
		<category><![CDATA[estrogen dominance]]></category>
		<category><![CDATA[iodine deficiency]]></category>
		<category><![CDATA[progesterone]]></category>

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		<description><![CDATA[Dr. David Zava explains how and why bioidentical progesterone can cause breast tenderness in some women.]]></description>
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		<title>Estriol and Breast Cancer</title>
		<link>http://www.healthwatchersnews.com/2009/07/estriol-and-breast-cancer/</link>
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		<pubDate>Mon, 27 Jul 2009 00:19:37 +0000</pubDate>
		<dc:creator>Dr David Zava</dc:creator>
				<category><![CDATA[Bioidentical Hormones]]></category>
		<category><![CDATA[breast cancer risk]]></category>
		<category><![CDATA[Dr. David Zava]]></category>
		<category><![CDATA[estriol]]></category>

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		<description><![CDATA[Over the past few years controversy has erupted over the risk of developing breast cancer with estriol therapy. A study from Sweden (Rosenberg et al, 2006) suggests that estriol can increase risk of lobular carcinoma when used for five years or less, and decrease the risk when used for more than five years. Unlike estriol however, oral estradiol and progestins continue to increase risk after five years. The results of this study may appear to be confusing, but can be explained by the differences in cancer initiation and cancer promotion by different types of estrogen.]]></description>
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