Background Cardiac implantable electric devices are commonly used to treat heart failure. Little is known about temporal and geographic variation in use of cardiac resynchronization therapy (CRT) devices in usual care settings.
A hammer drill, also known as a rotary hammer, roto-drill or hammering drill, (see also rotary drill) is a rotary drill with a hammering action. The hammering action provides a short, rapid hammer thrust to pulverize relatively brittle material and provide quicker drilling with less effort.
Roto-Rooter Plumbing & Drain Service provides plumbing repair, sewer & drain services to residential and commercial customers. Roto-Rooter is a United States company founded in 1935 which originally specialized in clearing tree roots and other obstructions from sewer lines.