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Literature DB >> 6391155

The role of the case-control study in evaluating health interventions. Vitamin supplementation and neural tube defects.

Abstract

Entities: Disease

Substances：
Vitamins

Source DB: PubMed Journal: Am J Epidemiol ISSN： 0002-9262 Impact factor: 4.897

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2 in total

Authors: G D Friedman; J V Selby
Journal: J Gen Intern Med Date: 1990 Sep-Oct Impact factor: 5.128

Authors: W C Willett
Journal: Am J Public Health Date: 1992-05 Impact factor: 9.308

2 in total