Example sentences of "it is [adv] established that " in BNC.

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1 It is well established that tension and stress can cause a variety of physical problems , ranging from attacks of influenza through to heart attacks , strokes and even cancer .
2 And it is well established that infant mortality is a highly sensitive barometer of socio-economic conditions ( and very possibly also of the state of health and medical technology ) .
3 It is well established that hypoxia occurs during endoscopic procedures and that oxygen given during upper gastrointestinal endoscopy and endoscopic retrograde cholangiopancreatography ( ERCP ) will significantly diminish the degree of oxygen desaturation .
4 It is already established that performance in such tasks is influenced by morphemic factors .
5 It is now established that insulin has an antinatriuretic action resulting in increased sodium reabsorption probably from the proximal convoluted tubules .
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