21.   Moreover, memory may be impaired for a variety of reasons, lack of initial attention is not the only possible explanation.

22.   That seemed the only possible explanation.

23.   But at least it provided a possible explanation for the delay in charging Sykes.

24.   The reasons for this are unclear, but there are two possible explanations.

25.   A further possible explanation, however, lies in the well recognised production of large amounts of mucoprotein by villous tumours of the rectum.

26.   There are several possible explanations for the finding of functional hyposplenism in this group of patients with alcoholic liver disease.

27.   These are two possible explanations for this.

28.   An increased cell loss during incubation with BrdU as another possible explanation is not supported by published works.

29.   One possible explanation relates to the differing effects of different types of dietary fibre on bile lipid composition.

30.   In a long reply to Dunlop and Tarshis, Keynes listed a number of possible explanations for the apparently procyclical behaviour of real wages.