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Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias ...

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Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias ...

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Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias ...

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Additional file 1: of Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias ...

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Additional file 1: of Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias ...

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Additional file 1: of Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias ...

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Regional differences in the validity of self-reported use of health care in Belgium: selection versus reporting bias