Hormone expert Dr John Stevenson told ITV News that the latest study into hormone replacement therapy shows it is "a safe treatment".
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A further 85 buses are expected to arrive on Tuesday and Wednesday, with officials saying the entire operation will last at least a week.
The reality star had filed a defamation lawsuit against celebrity gossip site MediaTakeOut.com.
The model and reality TV star said she had "never been so scared in my life" after finding Shavaughn McKenzie lurking in her driveway.