1.   As to likely causes, the out-of-round wheels phenomenon looks feasible.

2.   But one might be forgiven for doubting if this is the most likely cause of the toxic side-effects of direct drilling!

3.   Given that the doctor has ruled out infection and other likely causes for the diarrhoea, then food sensitivity should be considered.

4.   Hypokalemia is usually associated with this condition and is a more likely cause of the arrhythmias.

5.   There are many possible causes and often the likely cause is suggested from the routine history and examination of the patient.

6.   A spokesman for Greenpeace said that industrial pollution appeared to be the most likely cause.

7.   The calf was born after the government had imposed a ban on the feed suspected of causing BSE, leaving maternal transmission as the most likely cause.

8.   They did find high incidence of eye diseases among local animals, but in each case they concluded that the most likely cause was infection from a common pathogen.

9.   Although the researchers said that chemical pollution might have contributed to the mutations, they thought the more likely cause to be radiation.