Example sentences of "[coord] [verb] be shown to " in BNC.

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1 The remedies of the homoeopathic materia medica have not , as has happened to their orthodox counterparts , had to be abandoned , as one after another they have lost their efficacy or have been shown to be too toxic to be used safely .
2 Non-mydriatic fundal photography is useful for detecting retinopathy in patients with diabetes and has been shown to be effective in identifying previously unrecognised retinopathy when used in the community .
3 The technique has been adapted to suit the format of text recognition data , and has been shown to be effective as a means of identifying correct words from alternative candidates .
4 Measurement of faecal excretion of Indium-111 labelled leucocytes has been used to assess disease activity and has been shown to effectively distinguish active from quiescent Crohn 's disease and to correlate with other clinical and laboratory activity indices .
5 Acidophilic atypical acinar cell foci in the rat have a high proliferative capacity and have been shown to be responsive to CCK , whereas the basophilic atypical acinar cell foci seem to have a low growth potential , not appreciably affected by CCK .
6 Empirical therapy with class I antiarrhythmic drugs ( quinidine , procainamide , disopyramide ) was once widely practised but has been shown to be at best ineffective and at worst dangerous .
7 ZNF proteins contain ‘ finger ’ motifs consisting of approximately 30 amino acids which coordinate a zinc ion , and were first described in the Xenopus transcription factor IIIA ( 6,7 ) , but have been shown to be present in species as diverse as Drosophila and man .
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