What if the lab results thought to be our own really were not? Hey, mistakes happen in all walks of life. And labs are not immune. But there are a few steps we can take to protect ourselves. Here they are:

• Ask your doctor about the lab he or she uses. It should be accredited and approved by the College of American Pathologists, a sign the lab meets high standards.
  
  
• If you can see the test tube or slide, make sure your name is on it. If you are in the hospital, make sure your wristband is accurate.

Photographer Paula Lerner was diagnosed with breast cancer just after beginning work on Why We Walk: The Inspirational Journey Toward a Cure for Breast Cancer -- a book that captures through photographs the momentum of millions who year after year crowd America's streets and walk to conquer this disease.

A peek into this book is offered in the form of an online slide show, hosted by the Washington Post. Set to inspiring music and lyrics and lasting just three minutes and 59 seconds, this media presentation tells a story about a disease that strikes every three minutes and kills every 14 minutes.

Gripping photographs and sobering facts dominate this powerful piece. There are shots of women in pink wigs and pink tutus, children hosing off physically and emotionally drained walkers, women holding up photographs of lost loved ones -- one with a printed message that reads, Mom, we would walk forever to bring you back. May 14, 2004. There are smiles and cheers and tears. Every image packs an emotional punch.

The facts that appear throughout the slide show really stand out. They spell out in black and white some of the most important facts about breast cancer. And here they are -- all seven of them.

• 40,970 women and 460 men will die from breast cancer annually.

• Breast cancer is the most common cancer in African American women but ranks second to lung cancer in cause of cancer deaths.

• People over the age of 50 account for 77 percent of breast cancer cases.

• Breast cancer is most commonly diagnosed among Hispanic women and is the leading cause of cancer death among this group.

• Being overweight is linked to a higher risk of breast cancer, especially after menopause.

• Risk is increased by onset of menstruation before age 12, menopause after 50, first child after 30, or no children.

• Family history of breast cancer increases risk, especially if close relatives are diagnosed before the age of 50. A first-degree relative -- mother, sister, daughter -- with breast cancer approximately doubles the risk of breast cancer.