The Food and Drug Administration is expected to decide within the next few weeks whether to approve the first drug aimed at preventing pre-term births. Many experts see the medication, called progesterone, as a major potential advance. But they also disagree on how much evidence is enough to justify its routine use. WBUR's health and science reporter Allan Coukell explains.
This program aired on September 19, 2006. The audio for this program is not available.