Lupus meant woman no 'supermom'

"I'm ready," Roxanne Boyd Williams says with a smile as nurses wheel her gurney toward the operating room. She's been counting the days, anxious to end the dialysis that leaves her too drained to provide much care for her 2-year-old twins and 7-month-old.

Williams was in college when lupus struck, rapidly destroying her kidneys. A kidney from her sister survived treatment for post-transplant cancer, a blood-clotting disorder and the twins' birth, only to fail with her second pregnancy.

"I'd like to be super-mom for once," Williams says wistfully. "To really tell my kids, 'I'm here for you, I'm not sick, we'll go to the museum, we'll go to the park.'"