Example sentences of "been shown to [be] the " in BNC.

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1 Moreover , by choosing an option that has been shown to be the best in terms of quality of life days gained general practitioners would be more certain that they were acting with beneficence ; at present , using simply their ‘ unaided intuitive judgment ’ to make such decisions , they can only hope that this is the case .
2 Now C D thirty one is an endophilial cell adhesion molecule and the antibody has been shown to be the most specific marker of vascoendophilia and consistently in studies has stained more vessels than other markers .
3 Such conditions , shown in Fig. 8.1 B and D , have been shown to be the main ones responsible for damaging marine structures .
4 It has been shown to be the most abundant neuropeptide in the central nervous system and is also widely distributed throughout the peripheral nervous system .
5 This dose of oestrogen has previously been shown to be the minimum required to prevent bone loss in normal menopausal women .
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