See Also: Study, longitudinal(medicine)
Longitudinal study(health)
longitudinal study(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
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Longitudinal(medicine)
longitudinal(dictionary)
longitudinal lie(medicine)
longitudinal(dictionary)

Study, longitudinal (medicine)


study, longitudinal


A study done over the passage of time. For example, a longitudinal study of children with down syndrome (trisomy 21) might involve the study of 100 children with this condition from birth to 10 years of age. Also called a diachronic study. The opposite of a cross-sectional (synchronic) study.