1.   But most recently I did make a breakthrough discovery.

2.   He and others worry the new emphasis on performance and accountability will squeeze out those professors who spend years in labs before making breakthrough discoveries.

3.   So the breakthrough discovery of a hormone in the pancreas that allowed those children to continue living normal lives was exciting.

4.   The consequence has been a diminishing corporate interest in the brilliant, breakthrough discovery that might lead to an entirely new product, research directors said.

5.   This was a breakthrough discovery.