As results come in from long-term studies, a more definitive answer may emerge, officials said.

All existing evidence for this hypothesis comes from molecular studies within the last decade.

Evidence for forward models comes from studies of motor adaptation.

Further support for this would also come from studies of former Access course students in higher education.

Other clues come from studies too small to be considered definitive.

Those numbers usually come from single studies that indeed demonstrate an abortion rate around 90%.

The evidence, which has been remarkably consistent, comes from both laboratory and human studies.

Additional, but weaker, evidence comes from studies of electrical workers, the report said.

Essentially, it said, all current information about the health hazards comes from studies of disease among exposed workers.

Direct evidence about pragmatic factors in production comes from studies of the passive.