The Singapore program is more flexible than INSEAD's in that it allows you to multitask, offering 16 weeks of classes over 18 months.

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Literacy classes lasting between six and eight months are attended by groups of 18 and 25 learners under the guidance of trained teachers.

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So I would be especially concerned about vitamin D deficiency in young African-American men who have likely spent much of the last few winter months on indoor basketball courts and in indoor classes.

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