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Thank you for visiting this web page to help us with our Rh factor research.
The subject of the present study is searching for associations between the blood group of a subject and his/her personalit
y, performance, morphology and health. If you can check up on what your blood group is, please, do it now. We need the data from subjects with all blood groups, not only from Rh negative subjects. Therefore, please, share the link to this questionnaire with your friends, for example on Facebook. The questionnaire is anonymous and obtained data will be used exclusively for scientific purpose. Your cooperation on the project is voluntary and you can terminate it at any time by closing this web page.Part of this questionnaire is measurement of your reaction time. Therefore, use a computer mouse and not touchpad or touchscreen, if possible.
If you are prepared,press the key F11 and then the Next button.
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