Effect of supplementation with vitamin A or beta carotene on mortality related to pregnancy. Pooling of groups may not be appropriate

Vijayaraghavan, K.; Krishnaswamy, K.

Bmj 319(7218): 1201-2; Author Reply 1203

1999


ISSN/ISBN: 0959-8138
PMID: 10541530
Document Number: 510793

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