81.   The opportunity cost approach is the one typically used in the valuation of voluntary labour time.

82.   The other approach has been to argue that rats have difficulty with passive avoidance because they can not remember recent events.

83.   The president believed that his approach was the only one with any chance of success.

84.   The question now facing voters is which approach is likely to achieve the best balancing act.

85.   The reactive approach is virtually always ultimately more costly than the preventive approach.

86.   The safer approach is to start with that evidence which is directly relevant.

87.   The second approach is that breach of the statute provides only primafacie evidence of negligence.

88.   The second approach is to amend civil procedure.

89.   The second approach is to use lymphocytes that home in on tumours as vehicles for delivering a biological payload to the tumour.