Example sentences of "collect over a [num] [noun] " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | Individual faecal excretions were collected over a 4 day period after injection of the labelled cells , with particular care being taken not to contaminate the faecal samples with urine . |
| 2 | Individual faecal excretions were collected over a four day period in 500 ml polythene clip top containers . |
| 3 | The results of investigations in all patients referred by family practitioners to a medical gastroenterology outpatient clinic for the investigation of iron deficiency anaemia were prospectively collected over a 17 month period . |
| 4 | Until now , the Authority has been prevented from taking action because of a Water Act requirement that samples be collected over a 12 month period . |
| 5 | The data were collected over a 22 year period during which the frequency of diagnosis of endometriosis increased dramatically , with , for example , the reported incidence at time of laparoscopic sterilisation rising from <5% to 18% . |