Is there any other information
<em> Why is it important to match case subjects and control subjects so closely in a case-control study?</em>
So that they have as little of differences as possible which will limit the possible factors to getting a disease.
Yes you can. their called <span>Fordyce spots, or sebaceous glands. they usually appear during puberty and you tend to get more as you age. </span>
Communicable diseases are spread from person to person or from animal to person, while a lifestyle disease such as obesity affects how someone lives.