- Age >80 years, Myocardial infarction/unstable angina within 6 weeks prior to the study, Raynaud's phenomenon, peripheral vasculopathies, arterial shunting or other vascular surgery of the study arm, Any concomitant disease or condition that may interfere with the possibility for the patient to comply with or complete the study protocol, Participant in an ongoing study, Unwillingness to participate following oral and written information.