What these studies cannot report is, for example, that HRT causes breast cancer or that HRT prevents heart attack - although most people believe that these reports have done so. The type of research that can say HRT causes breast cancer was published in 2002, 2004 and the later confirmed in 2006 (www.whi.org). These are very valid studies because they employ techniques such as randomisation (each participant has an equal chance of receiving the HRT or identical non active tablet or placebo), they included thousands of women who were satisfactorily followed up for 5-7 years. Both studies were successful from the point of view that they answered questions like: Does HRT cause breast cancer or prevent heart disease? continue reading at: http://www.londonhrt.com
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