DOI: 10.1055/s-00030576

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics

References

Knight M, Kurinczuk JJ, Spark P, Brocklehurst P. ; UKOSS.
Inequalities in maternal health: national cohort study of ethnic variation in severe maternal morbidities.

BMJ 2009;
338: b542

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