The article refers to the release of this report by Childbirth Connection, entitled, "Evidence-Based Maternity Care Report, 2008".
Of doulas, family-practice doctor Valerie King of the Oregon Health & Sciences University in Portland says,
"If a doula could be put in an IV drip, everyone would get it."Also in USA Today, "Study: High-Tech Interventions Deliver Huge Childbirth Bill". I think the title speaks for itself.