| Literature DB >> 1138843 |
W H Massoud, A C Bird, E S Perkins.
Abstract
Plasma levels of vitamin A and beta-carotene were measured by spectrophotometry in 39 patients with genetically determined retinitis pigmentosa, No difference was found between the levels in these patients and the levels in a control group.Entities:
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Year: 1975 PMID: 1138843 PMCID: PMC1042593 DOI: 10.1136/bjo.59.4.200
Source DB: PubMed Journal: Br J Ophthalmol ISSN: 0007-1161 Impact factor: 4.638