Understanding why, the experts said, requires an appreciation of one of the crucial obstacles to better diabetes care.

But in recent weeks, crucial regulatory obstacles to Minorco's drive have been removed.

It is the inadequacy of these other resources which acts as a crucial obstacle to economic development in many LDCs.

But that was not the crucial obstacle to the deal's resolution.

Interviews with reporters who covered the story and their editors revealed crucial obstacles to fact-checking.

It is increasingly clear that the settlements are a crucial obstacle to a resumption of meaningful peace talks.

A crucial obstacle to implementing the recommendations could be cost.

Mr President, the political violence in Colombia is a crucial obstacle to peace and development in the country.

Yet they felt that Mr. Dinkins's race was a crucial obstacles to his re-election.

Anna's petty acts of rebellion may seem trivial, but they really are crucial obstacles to a future that seems scarily up in the air.