Introduction
A special population is a population that has some unique features. Any population can be described as a special population as long as it has some distinct features or it is a subset that is different from the general population. In categorizing special populations, the presence or absence of some features are taken into consideration and one of the most common type of identification feature is based on the ethnicity of the group. Gender can also be used to categorize a population as special. Geographic location is also an important aspect when categorizing populations. Age can also be used in this kind of ...