i recently used the hand hygiene observation tool and hand hygiene questionnaire tool which were developed by the veterens' affairs-six sigma project as a part of a project in my hospital. i want to know the validity of these tools. where can i f

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i recently used the hand hygiene observation tool and hand hygiene questionnaire tool which were developed by the veterens' affairs-six sigma project as a part of a project in my hospital. i want to know the validity of these tools. where can i find this information?

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