Various diseases are clustered into studies which they belong to.
Some are group according to the organ affected or the organ involved like in the case of cardiology which is a study that involves the heart.
A number of diseases are not organ related, they can be glands which produces hormones that are essential in several body processes and development to be carried out.
Endocrinology is a good example of this type of study.
It is a study that deals with hormones produce by the endocrine glands which are the thyroid, adrenal glands, the pituitary, pancreas, hypothalamus and the reproductive glands –ovaries for females and testes for males.
And few diseases are group into studies which are not organs, glands and hormone related.
Toxicology is a form of this type of study.
It is a study that deals with poisons, toxins or drugs that may be illegal or legal and could cause harm as well as death to a person.
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Along with Toxicology, Drug testing although it is not a type of study, it is a method employed to determine if a person make use of illegal drugs and also to determine if there are substances present that may be of medical use or illegally taken.
Referrences:
Toxicology By Gary D. Osweiler Fundamental toxicology By John H. Duffus, Howard G. J. Worth
Endocrinology Research Info
University of Mary Land Medical Center
Endocrinology Health Guide
HealthyPlace America's Mental Health Channel
