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A
screening program can be applied by four different methods. Screening can be
applied to the whole population and is thus called mass screening. If more
than one screening procedure is applied on the same occasion, this is
multiple screening. Screening tests can be applied to a group of specific
exposure, this involves targeted screening and is often used in
environmental and occupational health. The last type is case-finding
screening which is restricted to patients who consult a health practitioner
for another purpose.
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