They write: “It’s much easier to tell if a child gets a vaccination than it is to tell if a pregnant woman gets proper prenatal care. The first you can easily observe, and therefore count or measure; the second is trickier. But determining the appropriateness of a health service involves first defining what is considered to be high-quality is and then being able to measure it. There are lots of good ideas about how to do both, but it is not nearly as standardized as measuring number of assisted deliveries or utilization rates at clinics. So it is unsurprising that we are at a moment in global health history when quality questions have surfaced at the top of the agenda and questions about access are perhaps temporarily taking a backseat.”