Geographic and socioeconomic variation of sodium and potassium intake in Italy: results from the MINISAL-GIRCSI programme.

BMJ Open · 2015 · PMC4577927 · PMID 26359282

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an increasing trendno p-value reported

Aside from the 14.6% university degree holders, there was an increasing trend of educational attainment from the primary school to high school certificates.

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