text:  and from listeners like you who donate to this NPR station. It's Morning Edition from NPR News. I'm Sasha Pfeiffer. And I'm Abe Martinez. More than half of America's rural hospitals lack labor and delivery services, and every year more units close. The University of Colorado is trying to help narrow the gap by training nurse midwives to work in rural areas. Here's Colorado Public Radio's Rebecca Tauber.