shikiaanthony
06.11.2020 •
Chemistry
Which of the following describes a study that is "longitudinal"?
A study that follows people for an extended period of time to see if they develop a disease or condition.
A study that looks at people in one location, to reduce any bias introduced by varying locations.
A study that follows people taking a drug or placebo for 6 weeks to see if they develop a disease or condition.
A study that follows people taking medication in different locations, to see if their location impacts the medication's effectiveness.
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Ответ:
sorry I can not help you with this