The results of a two-year study are as good as those achieved with donor corneas.
A two-year study by the University of Pennsylvania medical school surveyed 283 sleep researchers and transportation safety experts.
A recent appeal from a conservative group long opposed to a Medicaid solution urged a two-year study before acting.
The rigidity of the administration's ideology became clear last week with the culmination of a two-year study of the nation's transportation woes.
In the results of a two-year study, released today, the researchers said electric utilities and other sectors of the American economy will use more gas through 2050.
Yesterday the independent Tyndall Centre for Climate Change, which has launched a two-year study into shipping emissions, said the problem needed to be addressed urgently.
A two-year study by a special committee recommended a thorough revision, and in 1937 the council gave its authorization to the proposal.
Foundation projects have included a multimillion-dollar study of forgiveness, and a two-year study to demonstrate the effect of prayer on 600 patients about to undergo surgery.
In addition, Mrs. Sanders and Antonia Stone, a computer expert, have conducted a two-year study for the Women's Action Alliance.
It's the result of a two-year study that analysed hundreds of thousands of employees using cutting-edge workflow management and data-focused tools.
In a two-year study, T.I.P.S. had been found to have significantly improved family involvement and attitudes about math homework and boosted math scores on standardized tests.
