Although there is no standard size for a chest of drawers, the most common size is 38 inches wide. A chest of drawers this size is small enough to fit in most bedrooms, but large enough to have ample storage space. The drawers are also small enough that they won't buckle or sag over time.
A duplex is defined as a house or building with two separate units. An example of a duplex is a house with two living units with a common wall. 1  double; twofold.  designating or of a system of telegraphy in which two messages may be sent simultaneously in opposite directions over a single circuit.
Carotid duplex is a simple and painless test that combines two types of ultrasound (sound waves) to look for blockages in your carotid arteries. Your carotid arteries are located along both sides of your neck. Blocked carotid arteries are a major risk factor for stroke. Conventional ultrasound, or B-mode, uses sound waves that bounce off blood vessels to provide a picture of your blood vessel structure.