Media type: E-Article Title: Nutrition Recommendations and Practices of Obstetrician‐Gynecologists before Conception and During Pregnancy A National Survey Contributor: LEVINE, BARBARA imprint: Wiley, 1993 Published in: Annals of the New York Academy of Sciences Language: English DOI: 10.1111/j.1749-6632.1993.tb26144.x ISSN: 0077-8923; 1749-6632 Keywords: History and Philosophy of Science ; General Biochemistry, Genetics and Molecular Biology ; General Neuroscience Origination: Footnote: