A rigorous study found that the drugs, a combination of estrogen and progestin, caused small increases in breast cancer, heart attacks, strokes and blood clots.
A rigorous study recently showed that 37 percent of the men in Gauteng Province, which includes Johannesburg, admitted to forcing a woman into sex.
A rigorous study, financed by the federal government and led by Rebecca Maynard, a professor of education and social policy at the University of Pennsylvania, is under way, but will not be complete until 2005.
A rigorous study by David Deming of Harvard, for example, found that Head Start graduates were less likely to repeat grades or be diagnosed with a learning disability, and more likely to graduate from high school and attend college.
A rigorous study of the convergence criterion and rate is also presented for our method.
A rigorous study of performance in opportunistic spectrum access systems that limit disruptions to unpredictable primary users is presented in[6].
A rigorous study shows that giving poor South African families a little extra money for each of their children improves their health and education.
A rigorous study is needed to evaluate the effectiveness of this intervention and following this, its cost-effectiveness.
Reports of fantastic recoveries made it popular in the 1990s, but health officials wanted a rigorous study.
For the first time, scientists have shown in a rigorous study that surgery to remove a cancerous prostate gland can reduce the risk of death from the disease.
"As drafted it is merely a defense or justification as to why the administration didn't do a rigorous study".
