Example sentences of "[n mass] at six [noun pl] " in BNC.

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1 These were all detected between 12 and 42 months after trial entry corresponding , by LTA , to 0% at six months , 8.9 ( 3.2 ) % at 12 months , 14.3 ( 4.0 ) % at 18 months , 22.9 ( 4.9 ) % at 24 months , 29.2 ( 5.7 ) % at 36 months , and 33.9 ( 7.0 ) % at 42 and subsequent months ( Fig 2 ) .
2 Weather was measured 600 feet broken , 4,000 feet overcast , visibility seven miles , temperature 38°F , Dew Point 37° F , wind 360° at six knots , altimeter 30.26 , drizzle ended at 0648 .
3 Ultrasound alone — A total of 24 recurrences was recognised by ultrasonagraphy corresponding to actuarial rates of 8.5 ( 3.1 ) % at six months , 14.9 ( 3.9 ) % at 12 months , 20.5 ( 4.6 ) % at 18 months , 23.4 ( 4.9 ) % at 24 months , 34.4 ( 6.2 ) % at 36 months , and 39.1 ( 7.2 ) % at 42 months , and thereafter ( Fig 2 ) .
4 Either method — If recurrence is defined as stone detection by either imaging technique , the total number was 26 which corresponds , by LTA , to 8.5 ( 3.1 ) % at six months , 17.4 ( 4.2 ) % at 12 months , 22.8 ( 4.7 ) % at 18 months , 25.7 ( 5.0 ) % at 24 months , 36.4 ( 6.2 ) % at 36 months , and 41.0 ( 7.2 ) % at 42 and subsequent months .
5 The bulletin suggests that grommets and adenoidectomy , either alone or in combination , reduce mean hearing impairment by less than 12 dB at six months , and that this improvement falls with time .
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