Do you have pet peeves? I have many, including those sun-catchers that folks hang on their rear-view mirrors, which on a sunny day blind the drivers behind them.
So, what is my PCS pet peeve? Let us discuss the root operations of restriction and occlusion. By PCS definition, “restriction” refers to the partialclosing of an orifice or tubular body part that includes both intraluminal and extraluminal methods.