The main feature of coronary care is the availability of telemetry or the continuous monitoring of the cardiac rhythm by electrocardiography.
One definition of a hook is a musical or lyrical phrase that stands out and is easily remembered. Definitions typically include some of the following: that a hook is repetitive, attention-grabbing, memorable, easy to dance to, and has commercial potential and lyrics. A hook has been defined as a part of a song, sometimes the title or key lyric line, that keeps recurring.
The hookah is a water pipe used for smoking, and is referred to as a nargile or nargila, shisha or sheesha, and hubbly bubbly. In social gatherings, a hookah is placed in the center of a group.