It has been said many times that we know how to save the lives of women with obstetric complications. Techniques to prevent some complications and treat others have been subject to careful scrutiny, especially through the Cochrane collaboration. Why then, as more resources and personnel are allocated to achieving Millennium Development Goal 5, are women still dying from obstetric complications? The answer, of course, is far from simple; but one reason is that despite the existence of carefully developed, tested, reviewed, and rereviewed protocols, they are often not followed. For example, a study by Miller et al.[1] examined maternal mortality in a hospital in the Dominican Republic and found that government-issued protocols were largely ignored. Two studies are reported in this issue of the Keystone section, one from Argentina and Uruguay [2] and another from China [3], which found low compliance with protocols. In the case of China, one reason is that much of the literature on protocols is not published in Chinese, and thus clinicians have inadequate information and, for the same reason, have limited capacity to seek more. The situation is by no means limited to obstetrics. One review learned that it took an average of 17 years for an improved practice to make its way into common practice [4]. Surgical innovations may require less time for wide acceptance.