David and Teresa Yeates, parents of missing architect Joanna
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Parents of Joanna Yeates make emotional appeal

23 December 2010 Last updated at 13:00 GMT

The family of a young architect, who has been missing from her home in Bristol for six days, has made an emotional appeal for information.

Joanna Yeates disappeared after a night out with colleagues and her parents, David and Teresa, fear she has been abducted.