dr. kenneth sawyer. coming up -- >> the most difficult case that i have ever had to deal with. >> doctors face a choice. whether to let the twins go through life joined at the head or risk death by trying to give them a more normal life. [ male announcer ] you've climbed a few mountains during your time. and having a partner like northern trust -- one of the nation's largest wealth managers -- makes all the difference. our goals-based investment strategies are tailored to your needs and overseen by experts who seek to maximize opportunities while minimizing risk. after all, you don't climb a mountain just to sit at the top. you lookround for other mountains to climb. ♪ expertise matters. find it at northern trust. ♪ you know rheumatoid arthritis means pain. but you may not know it can also mean destruction. not just of your joints, but of the things you love to do. and the longer you live with the aching, swelling, and stiffness, the closer you may be to having your favorite things... taken away from you