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

itoggle caption University of Utah

Doctors use tissue slides like this one of the ovary's outer cortex to confirm a woman's ovarian reserve. It's also the the ovary tissue that's removed in an ovarian transplant. Courtesy of the Infertility Center of St. Louis hide caption

itoggle caption Courtesy of the Infertility Center of St. Louis

When researchers looked at the genetic sequences of 179 individuals, they found far more defects in the patterns of As, Ts, Gs, and Cs than they expected. iStockphoto.com hide caption

itoggle caption iStockphoto.com

By sequencing a newborn's genome, doctors could screen for more genetic conditions. But parents could be confronted with confusing or ambiguous data about their baby's health. iStockphoto.com hide caption

itoggle caption iStockphoto.com

New England Compounding Center co-owner Barry Cadden went to Capitol Hill for a congressional hearing Wednesday on the fungal meningitis outbreak. Choosing to take the Fifth Amendment, Cadden did not testify. Susan Walsh/AP hide caption

itoggle caption Susan Walsh/AP

People look at homes and businesses destroyed during Superstorm Sandy on Tuesday in the Rockaway section of Queens, N.Y. Spencer Plat/Getty Images hide caption

itoggle caption Spencer Plat/Getty Images

Radiation therapist Jean Etienne holds a range compensator, which shapes the depth to which the proton beam enters a patient's body to target a tumor. Rebecca Davis/NPR hide caption

itoggle caption Rebecca Davis/NPR

An image of researchers at Oregon Health & Science University removing the nucleus from the mother's cell before it's inserted into the donor's egg cell. Courtesty of Oregon Health & Science University hide caption

itoggle caption Courtesty of Oregon Health & Science University

Human embryos under a microscope at an IVF clinic in La Jolla, Calif. Sandy Huffaker/Getty Images hide caption

itoggle caption Sandy Huffaker/Getty Images