51.   This inhibits their function and promotes clotting, restricting the flow of oxygen within the body.

52.   Three days of tests discovered a reactive airway problem that restricts the flow of air through his bronchial passages during heavy exercise.

53.   Tobacco smoke constricts blood vessels in mother and fetus, restricting the flow of blood.

54.   Together with carbon monoxide, nicotine can eat away at the linings of the heart, promote blood clots and restrict blood flow through the arteries.

55.   When sensors detect the wheels slipping, a computer begins to restrict the flow of fuel while applying progressive brake pressure, helping the driver to maintain control.

56.   Working out longer than that could restrict blood flow to the placenta and raise the temperature inside the uterus to a dangerous level.

57.   Yeltsin was hospitalized for almost a month after an attack in July of acute ischemia, a condition that restricts blood flow to the heart.

58.   A connector between Minnesota and Wisconsin has frequently become congested, restricting power flow into Wisconsin and beyond, grid managers say.

59.   As a consequence they also believe that laws which restrict information flow are immoral.

60.   Baghdad accuses Ankara of restricting the flow of the Tigris and Euphrates rivers and hosting U.S. and British warplanes patrolling no-fly zones over northern Iraq.