However, even after decades of research, a large number of families remain.

It could take decades of research before we figure out who they were and what happened to them.

And that 30 pounds came after more than a decade of research.

Despite decades of research, there's no simple cure for colds.

The book is the product of more than two decades of research.

Based on several decades of research, S-equol has potential for significant health benefits.

In the first decades of research, scientists were primarily white and male.

Now a museum has opened on the site, capping more than a decade of research.

La Finca was like no science project he'd ever seen, not in two decades of professional research.

Over a decade of research and development went into its new security features.