I think your point is very well taken. There are many times when we will receive data because someone has mandated it, so either the hospital says it must happen or.... In the case of the hospital databases that we have, for example, it's usually the province that requires that their hospitals all submit data to us so that they can have an overall standardized picture of what's happening.
In some instances there is an incentive that drives enough data submission, but in general, I would say, there has to be someone who decides it's important to collect it. Because, as you say, it takes time, it takes money, it may be inconvenient, people may perceive risk to collecting it, often they need to have that mandated in some cases. For the databases for which we have the most complete coverage, those have been, generally speaking, mandated, often in our case at a provincial level.