News tagged with grades

Lack of vitamin B12 can cause trouble in school

Vitamin B12 deficiency in elementary school children from Bogotá, Colombia, was strongly associated with the students having to repeat a grade and with their number of school absences, researchers from the ...

May 15, 2015
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Why do young adults start smoking?

The risk of becoming a smoker among young adults who have never smoked is high: 14% will become smokers between the ages of 18 and 24, and three factors predict this behaviour.

Sep 17, 2013
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Grade

Grade may refer to:

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