Vitamin A Levels in Health and Disease

Abstract

The antimony-trichloride method for estimating vitamin A has now been available for nearly 25 years, and has been used to study the metabolism of the vitamin in man and animals by numerous workers all over the world. It is not surprising, therefore, that the wealth of literature is quite beyond compression into a short review, SO that we Cannot hope to outline more than a few of the main developments in the field, with emphasis on points in which we have been personally interested.