Several large studies analyzed the risk factors for severe RSV disease in high-risk populations.
Several large studies have found that the risk of depression in people with severe allergies is about twice that of those without allergies.
Several large studies since then have shown that that shift — while perhaps sparing some patients movement problems — has had a cost.
Several large studies have found that the procedure eased fibroid-caused symptoms in 85 to 95percentt of women but did not necessarily eliminate them.
At a conference in London convened last month by Oldways Preservation and Exchange Trust, a nonprofit organization that studies and promotes traditional healthful diets, medical researchers described several large studies linking frequent nut consumption to better health.
But in the past decade, several large studies have found that compared with healthy people of the same age and sex, those with Type 2 diabetes are twice as likely to develop Alzheimer's.
Several large studies have shown that people who eat fruits daily have lower rates of heart disease, and those who eat lots of vegetables, particularly raw and leafy green vegetables, have a reduced risk of heart attacks.
As a result, the task force weighed in, analyzing several large studies that tried to determine whether the potential benefits of prostate cancer screening outweighed the harms.
But recently several large studies have raised concerns about CT scans done on children because the radiation from these scans can increase the risk of eventually developing cancer, though that overall risk is still very small.
The Faster Trial is one of several large studies now under way of new prenatal tests that can predict the presence of Down syndrome and that are expected to reduce substantially the number of pregnant women who undergo an amniocentesis, which in a small number of cases can cause a miscarriage.
Several large studies have demonstrated an association between treatment with antipsychotics and increased morbidity and mortality in people with dementia.
