We intended to write both QV and cost, but then the editor said that the COST may be way over-complicated for one article to tackle, so we just left in a few acronyms so that people can understand what COST is about.
We intended to write both QV and cost, but then the editor said that the COST may be way over-complicated for one article to tackle, so we just left in a few acronyms so that people can understand what COST is about.