Example sentences of "occur [adv prt] [adv] [n mass] [prep] " in BNC.
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| 1 | Table 6.4 shows that on about 75% of occasions the state of the atmosphere ( foggy or clear ) remained the same from one day to the next , and a change from one state to another occurred on about 25% of occasions . |
| 2 | Florid active mucosal inflammation with disturbed bowel function , often called ‘ pouchitis ’ , is a comparatively common complication of ileal reservoirs created after colectomy , usually for ulcerative colitis , occurring in roughly 20% of cases ( range 7–42% ) . |
| 3 | Stone recurrence after bile acid therapy occurs in approximately 50% of patients within five years of treatment and then reaches a plateau of 61% by the 11th year . |
| 4 | Increased serum pancreatic enzyme activities are common after ERCP , but clinically significant pancreatitis occurs in about 2% of procedures only . |
| 5 | Such complications occur in approximately 50% of patients with Barrett 's columnar lined lower oesophagus . |
| 6 | These findings indicate that parietal cells disappear from the antrum of the stomach in the third trimester of pregnancy , but this process fails to occur in approximately 20% of the population . |
| 7 | In classic phenylketonuria microcephaly , mental handicap , and impaired fetal growth are likely to occur in over 80% of subjects , accompanied by malformations in the heart or other organs in at least 20% . |