In the United States, overall, the average annual salary for a  school registrar is $36,000. The average annual income for a school  registrar in New York City is $50,000.n the United States, overall, the average annual salary for a  school registrar is $36,000. The average annual income for a school  registrar in New York City is $50,000.
uintptr_t. uintptr_t is an unsigned integer memsize-type that can safely store a pointer regardless of the platform capacity. The type uintptr_t is similar to the types size_t and UINT_PTR. The size of the type depends upon the data model. To learn more about memsize types and ways of using them see the article About size_t and ptrdiff_t.
In brief: Uniform standered. Pt is prothrombin time, inr is international normalized ratio, both measure cloting tendency in disease and in health. In pt each time you need contol which varies place to place and some what unpredictble. So inr solves the problem by uniform standred all over the world.