Expert Rev Ophthalmol. 2009;4(1):59-64. Edetate disodium (EDTA) is a chelating agent used in a variety of nonophthalmic products, including hair conditioner, facial cleansers, aftershaves and ...

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...