Welcome to the International Museum of a surgical science we are so happy that you could all be here. We are really honored to host the new talk on counting backwards. For those of you that have not been here before the International Museum of a surgical science is a division of the International College of surgeons it was founded in 1954 by dr. Max saw rex. Is housed in this historic mansion. It was built in 1917 for the countess family Eleanor Robinson was a prominent figure in the upper class during the early early 20th century. We are proud to continue that legacy. The museum houses four floors for floors of exhibits on surgical and medical history the main themes in the museum are the development of the understanding of Human Anatomy the development of anesthesia in the development of nsf this. We are really excited today to host this book counting backwards it is a pleasure to be here. A little while back and understand that as one gracefully matures it was a little while back th