Head and Neck Radiology The radiology subspecialty devoted to the diagnostic imaging and diagnosis of diseases of the head and neck. This includes x-rays, CT (computed tomography or CAT), Ultrasound and MRI. Musculoskeletal Radiology The radiology subspecialty devoted to the diagnostic imaging and diagnosis of the muscles and the skeleton.
What Is Kitty Litter Made Of? Before 1950, kitty litter mostly consisted of sand, dirt or ashes. The first modern kitty litter was created when a neighbor of entrepreneur Edward Lowe asked him for sand for her litter box. Mr. Lowe, whose business created absorbents, convinced his friend to use clay rather than sand.
There really is no clear answer to which type of cat litter is the best. The choice between clumping and non-clumping litter is a personal decision that will depend on what you want in a cat litter and what your cat prefers. Many cats appear to prefer clumping litter because it is easier for them to push aside, but some cats prefer non-clumping clay.