Validation of modified World Health Organization classification for pregnant women with heart disease in a tertiary care center in southern Thailand.

Int J Womens Health · 2018 · PMC5779307 · PMID 29403316

Europe PMC DOI

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an increasing trendno p-value reported

Our study had an adequate number of patients in each class to demonstrate an increasing trend of maternal cardiovascular events in all of the modified WHO classes.

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