Example sentences of "in about [art] third of " in BNC.
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| 1 | This can be seen as a backlash against independent research which shows that confusion and ignorance is the main factor in about a third of unplanned teenage pregnancies . |
| 2 | Within marriage , in Gorer 's group , the most frequent rate of intercourse — the number of times within a given period in which intercourse generally took place — was once or twice a week , in about a third of the marriages concerned . |
| 3 | Mutant oncogenes of the ras family are found in about a third of all cancers and as many as 80% of pancreatic tumours . |
| 4 | Algorithms detect most high risk patients , both young and old , and risk factor stratification shows that in about a third of them there is a likely or predominant initiating mechanism that is amenable to specific treatment — for example , paroxysmal atrial fibrillation with amiodarone ; an accessory pathway with ablation ; a gradient with β blockers , calcium antagonists , or myectomy ; conduction disease with a pacemaker ; refractory sustained ventricular arrhythmias with an implantable cardioverter defibrillator ; and relative ischaemia in the presence of normal coronary vessels with nitrates and calcium antagonists . |
| 5 | The post-void study revealed a , a residual volume of more than a hundred mils in about a third of patients , . |
| 6 | A recent ad for follow-on milk , quoting from an article in the British Medical Journal , stated that cow 's milk given at six months caused ‘ subclinical but appreciable gastro-intestinal bleeding in about a third of children . ’ |