1.   Animal research has proved of little value in the past and will continue to hinder medical progress in the future.

2.   In spite of a keen desire to reach greater heights, progress is hindered by poor practice methods which make improvement slow and frustrating.

3.   It became clear that the relevant government ministers were deliberately hindering the progress of the necessary bill.

4.   The door began to swing inwards, but painfully slowly, his weight and the strong breeze hindering its progress.

5.   The problem of fragmentation continues to hinder progress in most development work in the bantustans.

6.   When economic and social progress is hindered by ineffectual and corrupt government, the global polity suffers.

7.   While you might find this an appealing prospect, it will soon become a shackle that will hinder your progress online.

8.   At school his academic progress was hindered by a series of health problems.

9.   According to Radio France International Cheiffou said that progress had been hindered by various obstacles including intrigues by political parties and the unjustified expectations of the army.

10.   But progress has been hindered by problems with toxicity and with the ability of HIV to become resistant to individual drugs.