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 fistashka80

link 27.01.2009 18:19 
Subject: person-days (index date) med.
Пожалуйста, помогите перевести.eligible person-days (index date)

Выражение встречается в следующем контексте:
A group of 20,000 control subjects were randomly selected from the list of eligible person-days (index date) and frequency matched to the cases on sex, age within 1 year, and calendar year.

Заранее спасибо

 d.

link 27.01.2009 18:38 
человеко-дни?

 

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