1.   Arguments raged about whether the noisy plane would be allowed to land in New York.

2.   Doctors said the ear infection was caused by frequent flying in noisy planes and overwork.

3.   His doctors said it was caused by overwork and frequent flying in noisy military planes.

4.   His doctors said the ailment was caused by overwork and frequent flying in noisy military planes.

5.   Thaksin was admitted to the hospital earlier this month with an ear infection, which doctors said was caused by overwork and frequent flying in noisy planes.