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  2. Etiology - Wikipedia

    en.wikipedia.org/wiki/Etiology

    Etiology (/ ˌ iː t i ˈ ɒ l ə dʒ i /; alternatively spelled aetiology or ætiology) is the study of causation or origination. The word is derived from the Greek word αἰτιολογία ( aitiología ), meaning "giving a reason for" (from αἰτία ( aitía ) 'cause' and -λογία ( -logía ) 'study of'). [ 1 ]

  3. Cause (medicine) - Wikipedia

    en.wikipedia.org/wiki/Cause_(medicine)

    Cause, also known as etiology (/ iː t i ˈ ɒ l ə dʒ i /) and aetiology, is the reason or origination of something. [ 1 ] The word etiology is derived from the Greek αἰτιολογία , aitiologia , "giving a reason for" ( αἰτία , aitia , "cause"; and -λογία , -logia ).

  4. Causal inference - Wikipedia

    en.wikipedia.org/wiki/Causal_inference

    Causal inference is the process of determining the independent, actual effect of a particular phenomenon that is a component of a larger system. The main difference between causal inference and inference of association is that causal inference analyzes the response of an effect variable when a cause of the effect variable is changed.

  5. Four causes - Wikipedia

    en.wikipedia.org/wiki/Four_causes

    Thomas Aquinas demonstrated that only those four types of causes can exist and no others. He also introduced a priority order according to which "matter is made perfect by the form, form is made perfect by the agent, and agent is made perfect by the finality." [9] Hence, the finality is the cause of causes or, equivalently, the queen of causes ...

  6. Pathology - Wikipedia

    en.wikipedia.org/wiki/Pathology

    Pathology is the study of disease. [1] The word pathology also refers to the study of disease in general, incorporating a wide range of biology research fields and medical practices.

  7. Koch's postulates - Wikipedia

    en.wikipedia.org/wiki/Koch's_postulates

    Koch applied the postulates to describe the etiology of cholera and tuberculosis, both of which are now ascribed to bacteria. The postulates have been controversially generalized to other diseases. The postulates have been controversially generalized to other diseases.

  8. Infection - Wikipedia

    en.wikipedia.org/wiki/Infection

    Causes Bacterial , viral , parasitic , fungal , prion An infection is the invasion of tissues by pathogens , their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [ 1 ]

  9. Functional symptom - Wikipedia

    en.wikipedia.org/wiki/Functional_symptom

    Functional weakness is weakness of an arm or leg without evidence of damage or a disease of the nervous system. Patients with functional weakness experience symptoms of limb weakness which can be disabling and frightening such as problems walking or a 'heaviness' down one side, dropping things or a feeling that a limb just doesn't feel normal or 'part of them'.