1. Department of Urology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, Louisiana

2. School of Medicine, Louisiana State University Health Sciences Center at Shreveport, Shreveport, Louisiana

3. School of Medicine, Louisiana State University Health New Orleans, New Orleans, Louisiana

4. Department of Anaesthesiology, Harbor-UCLA Medical Center, Torrance, California

5. Department of Anaesthesiology, Louisiana State University Health Sciences Center Shreveport, Shreveport, Louisiana