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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Wald G., Steven D. An Experiment in Human Vitamin A-Deficiency. Proc Natl Acad Sci U S A. 1939 Jul;25(7):344–349. doi: 10.1073/pnas.25.7.344. [DOI] [PMC free article] [PubMed] [Google Scholar]
