DeVarney said the company collaborated with Dr Richard Gevirtz, a professor at the Alliant International University in San Diego, California, who conducts research in heart rate variability.

DeVarney说他们公司和联合国际大学(加州·圣地亚哥)的Richard Gevirtz博士取得了合作，Richard Gevirtz博士开展心率可变性方面的研究。

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