Rob Stein, «Critics Slam Cost of FDA-Approved Drug to Prevent Preterm Births», WashingtonPost, March 28,2011. http://www.washingtonpost.com/national/fda-approval-of-drug-to-prevent-preemies-prompts-price-jump-from-10-to-1500/2011/03/04/AfmRo6qB-story.html.