目的从多角度了解维持性血液透析患者的社会心理状况，为进一步提高其生活质量提供资料。

Objective To understand the social and psychologic status of maintenance hemodialysis patients for improving their quality of life.

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旨在确立越南北部农村地区妊娠女性的碘营养状况并探索其家中碘盐使用的社会心理学预期。

To establish iodine status among pregnant women in rural northern Viet Nam and explore psychosocial predictors of the use of iodized salt in their households.

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答：各国状况有所不同，但总体而言都缺乏社会心理方面的专业技能。

A: It differs from country to country, but on the whole there is a lack of psychosocial expertise.

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