complications. the technology is safe. i have done over 4,000 of these cases zent had any issues. you need to have a program, you need to have the entire team with expertise then you put it together plus the technology you have the outcome. when i do these surgeries it takes only about an hour. there's no transfusion. all of the surgeons i did yesterday they are going to go home today. the outcome is good. the learning curve is steep and long and it takes time to get good at it. a oo the manufacturer of this da vinci program says the rate of death from the robot is consistent with the rate that you would see in traditional surgery. is that correct? >> it is absolutely correct. again the technology has a long history. this is not something new it has been around for about 12 years. you have to learn in the virtue reality and simulation labs. you need to practice outside of the operating room.