81.   That was when the U.S. Food and Drug Administration pushed for their withdrawal after a Mayo Clinic study linked the drugs to potentially fatal heart valve damage.

82.   The panel deadlocked over whether to a second type of talc, fibrous talc that some studies have linked to lung cancer in talc miners.

83.   The panel deadlocked over whether to list a second type of talc, fibrous talc, that some studies have linked to lung cancer in talc miners.

84.   The study linked certain adenoviruses, which can cause upper respiratory infections, to a condition in adults called left ventricular dysfunction.

85.   The study linked the lower incomes to lower achievement in school, which led to lower-paying, blue-collar jobs.

86.   Two previous studies have linked strokes with secondhand smoke, but this is the largest and most rigorous to date.

87.   Two previous studies have linked strokes with secondhand smoke, but this is the most rigorous to date.

88.   A new study links the Three Mile Island nuclear plant accident to increased rates of leukemia and lung cancer, the Washington Post reported Monday.

89.   Earlier studies had linked shift work to miscarriages and low birth-weight babies.

90.   Two new studies are linking a brain chemical with symptoms of autism, a poorly understood neuro-psychiatric syndrome.