They determine this by looking at a complex set of lines overlaid onto a stock chart, such as moving averages, support lines, volume activity, etc.

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The procedure - known as peritonectomy and hyperthermic intraperitoneal chemotherapy - requires a patient to undergo a complex surgical procedure and involves the removal of the membrane that lines the inner wall of the abdomen and all visible recurrent cancer.

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Mr Bush has become president as a result of a complex legal decision taken by a divided Supreme Court voting on largely partisan lines.

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With users engaging with apps for short, but frequent periods of time, expect apps to begin developing new complex characters and more robust story lines in the near future.

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