21.   People have fallen in love for stranger reasons, but music has obviously played a central role in their marriage.

22.   Improvisation and expression as well as musical accompaniment of the exercises plays a central role in the training programme of the Medau-Schule.

23.   The precise aetiology remains unclear but fibroblasts and myofibroblasts are thought to have a central role, and superoxide free radicals might be the stimulus to myofibroblast proliferation.

24.   A large majority agreed a central role for the computer and this underpinned the applications and methods approach ultimately adopted in the core curriculum.

25.   Secondly data structures are already beginning to come apart from use structures and GIS plays a central role in this.

26.   The similarities and differences between grief and depression have had a central role in the development of psychoanalytic theory.

27.   These institutions, unique to the UK, play an absolutely central role in the monetary system.

28.   Both use metaphors that confirm his central role in the proceedings.

29.   One issue of interpretation is the extent to which the exchange, given its central role, shares or acknowledges a particular market view of what its rules mean.

30.   The idea of the Big Apple is to remind locals and tourists of the central role the fruit plays.