In summary, treatment of gallstones by lithotripsy is noninvasive. In outpatient procedures we use IV analgesia, ideal is Propofol at this time. Previously they used different aspects. In Germany they still use like our ERCP/Versed/Demerol combination, but at this time, in this stage, we will use with Propofol. This is a 45 to 60-minute procedure and post-procedure recuperation time is very short and the patient might go home after the procedure, if it is done properly. Like I show some numbers from many different countries in our hand, patients might have a stone-free gallbladder 80% of the time at the one year follow-up.