| colonic lumen | 0.39 | These provide excellent substrates for the generation of SCFA within the colonic lumen. | ||
| intestinal lumen | 0.39 | Moreover, many nematode larvae were seen in the intestinal lumen. | ||
| duodenal lumen | 0.33 | Duodenal damage scores were plotted against the dose of acid instilled into the duodenal lumen. |