American Cancer Society
<a href="http://www.cancer.org" target="_blank" rel="noopener noreferrer">www.cancer.org</a>

American Urological Association
<a href="http://www.urologyhealth.org" target="_blank" rel="noopener noreferrer">www.urologyhealth.org</a>

Mayo Clinic
<a href="http://www.mayoclinic.com" target="_blank" rel="noopener noreferrer">www.mayoclinic.com</a>

National Institutes of Health
<a href="http://www.nih.gov" target="_blank" rel="noopener noreferrer">www.nih.gov</a>

The Urology Channel
<a href="http://www.urologychannel.com" target="_blank" rel="noopener noreferrer">www.urologychannel.com</a>

American Medical Systems
<a href="http://www.americanmedicalsystems.com" target="_blank" rel="noopener noreferrer">www.americanmedicalsystems.com</a>

Intuitive Surgical Systems
<a href="http://www.intuitivesurgical.com" target="_blank" rel="noopener noreferrer">www.intuitivesurgical.com</a>

da Vinci kidney surgery
<a href="http://www.davincisurgery.com" target="_blank" rel="noopener noreferrer">www.davincisurgery.com</a>

da Vinci prostatectomy
<a href="http://www.davinciprostatectomy.com" target="_blank" rel="noopener noreferrer">www.davinciprostatectomy.com</a>