Vital signs: Blood pressure and heart rate will be investigated by the method of Riva Rocci with a special measuring instrument (Firma boso-medicus SN 768 00 440 729 Bosch+Sohn GmbH und Co) and a stethoscope. The patient has to be sit down for more then 15 min. These measurements will be carried out 3 times in a row and the mean value will be used.