ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] THE accepted signs of vitamin A deficiency are (1) defective low-intensity vision, (2) retarded growth leading to loss of weight, (3) hyperkeratosis (keratinizing metaplasia), and (4) xerophthalmia. The usual biological assay is carried out on rats depleted to the point of rapid loss of weight. ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/172716a0