21.   She consulted the defendant specialist who performed an operation to free the trapped nerve.

22.   A hospital in Buckinghamshire is one of only two in the country performing the operation.

23.   A user can perform Boolean operations to include or exclude clones which hybridise to particular probes or classes of probes.

24.   The Trust says the fear of possible litigation after complicated births may encourage some doctors to perform the operations.

25.   Amplifiers that are well suited to performing mathematical operations on input signals when negative feedback is applied are termed operational amplifiers.

26.   An operation is performed to repair his damaged skull with a titanium plate, but Martin is warned that he will never be able to see again.

27.   And surgeons say they would not perform the operations if they had any other means of saving their patients.

28.   And many urologists perform an operation to enlarge the penis.

29.   Another operation is usually performed to construct a nipple.

30.   At least a thousand such operations are performed each year.