1.   The colonic epithelium is in continuous contact with potentially carcinogenic compounds, which enter the body usually as part of the diet.

2.   Boeing officials have been in continuous contact with administration officials during the last few weeks of negotiations in Brussels.

3.   For some, the allergy season is year-round, the result of continuous contact with mold spores, dust mites, feathers, pet dander or cigarette smoke.

4.   Thanks to the Internet and satellite telephone services, crew members and their families were in nearly continuous contact via e-mail and direct telephone services.

5.   The shoes send an automatic signal to the judges when a walker has not maintained continuous contact with the ground.

6.   Throughout the next day, the two remained in continuous contact.

7.   Through this continuous contact with the world, with each passing day, Russia becomes a more normalized society.

8.   Spanish Interior Minister Jaime Mayor Oreja is in continuous contact with the Moroccan authorities, she said.

9.   The official said the release follows continuous Jordanian contacts on all levels with the Kuwaiti leadership in the last three years.