1.   Over the next two years the protest movement, a mixture of genuine discontent, sincere concern and self-indulgence, petered out.

2.   To say this is not to belittle the sincere concern shown by many religious people in the debate over embryo research.

3.   He showed a sincere concern for her health.

4.   There is a sincere concern for quality.

5.   I thought it was a good open discussion from people with sincere concerns.

6.   This is perhaps a mix of sincere concern and political strategy.