The number of new drug shortages each year in the U.S., from 2001 through Dec. 21, 2012. University of Utah hide caption

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University of Utah

How A Drug Shortage Hiked Relapse Risks For Lymphoma Patients

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Brain scans using Amyvid dye to highlight beta-amyloid plaques in the brain. Clockwise from top left: a cognitively normal subject; an amyloid-positive patient with Alzheimer's disease; a patient with mild cognitive impairment who progressed to dementia during a study; and a patient with mild cognitive impairment. Slide courtesy of the journal Neurology hide caption

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Slide courtesy of the journal Neurology

Despite Uneven Results, Alzheimer's Research Suggests A Path For Treatment

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For centuries, Russians believed putting a brown frog in their milk would keep it fresh. Now scientists are finding chemicals in the frog's slimy goo that inhibit the growth of bacteria and fungi. Stefan Arendt/Corbis hide caption

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Stefan Arendt/Corbis

Grapefruit can make for a tasty addition to breakfast. But it can also interfere with some medications. iStockphoto.com hide caption

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iStockphoto.com

Currently, you need a doctor's prescription to purchase emergency contraception, such as Plan B, if you are under 17. AP hide caption

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AP

A controversial pilot project reduced the cost of the most effective malaria drugs by giving manufacturers, such as Guilin Pharmaceutical in China, subsidies. Frederic J. Brown/AFP/Getty Images hide caption

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Frederic J. Brown/AFP/Getty Images

Blood samples dry during malaria screening. Public health workers call for more malaria testing in Africa to stop costly drugs from being handed out to kids with pneumonia. Paula Bronstein/Getty Images hide caption

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Paula Bronstein/Getty Images

Dr. Esther Dalizu holds a pack of Coartem Malaria drugs in a pharmacy in Nairobi, Kenya, last year. Sayyid Azim/AP hide caption

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Sayyid Azim/AP

Under the microscope, Mycobacterium tuberculosis bacteria. The germs that cause TB have become resistant to many drugs. Janice Haney Carr/CDC hide caption

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Janice Haney Carr/CDC

Treatment For Alzheimer's Should Start Years Before Disease Sets In

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Álvaro Marín

Fun With Physics: How To Make Tiny Medicine Nanoballs

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