A construction worker paints walls at the Maryland Proton Treatment Center in Baltimore. Each of the center's five rooms will contain a massive piece of equipment that will rotate around a cancer patient to deliver a special kind of radiation. Jenny Gold/Kaiser Health News hide caption

itoggle caption Jenny Gold/Kaiser Health News

To fight antibiotic-resistant staph germs like these, a study suggests disinfecting the skin of all intensive care patients. Janice Carr/CDC hide caption

itoggle caption Janice Carr/CDC

Average hospital charges for a major joint replacement, such as an artificial hip, vary widely, as this map from the federal Centers for Medicare & Medicaid Services shows. HHS hide caption

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SWAT team members stand guard on the campus of Massachusetts General Hospital following the explosions at the finish line of the Boston Marathon. Michael Dwyer/AP hide caption

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Medical personnel work outside the medical tent in the aftermath of two explosions near the finish line of the Boston Marathon on Monday. At area hospitals, doctors say they were confronted with the kinds of injuries U.S. troops get in Iraq and Afghanistan. Elise Amendola/AP hide caption

itoggle caption Elise Amendola/AP

Health and Human Services Secretary Kathleen Sebelius (center), flanked by Centers for Medicare and Medicaid Services Acting Administrator Marilyn Tavenner (left) and Food and Drug Administration Commissioner Margaret Hamburg, speaks during a budget briefing in Washington on Wednesday. Manuel Balce Ceneta/AP hide caption

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Students at the College of Central Florida in Ocala, Fla., perform CPR on a mock patient. Bruce Ackerman/Ocala Star-Banner /Landov hide caption

itoggle caption Bruce Ackerman/Ocala Star-Banner /Landov

It's unlikely that July patients are paying for residents' inexperience with their lives. iStockphoto.com hide caption

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Walgreens is one of several pharmacies that have partnered with hospitals to help manage patients after they've returned home. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images