21.   Doctors performed a bronchoscopy every few hours over the weekend, using a tube to clear his clogged right lung of phlegm.

22.   Others used tire tubes to float toward safer ground.

23.   Steven, who suffers from cerebral palsy, uses a tube to breathe and eat.

24.   The separatist group ETA has been accused of using rudimentary tubes to hurl grenades in previous attacks, some on police stations.

25.   The tube was used to launch a rocket at the party offices, authorities said, adding that the rocket failed to detonate.

26.   This tube can be used to perform a balloon angioplasty, a technique whereby a collapsed balloon is placed at the point of blockage and then inflated.

27.   Whalen was taken to Imperial Point Medical Center, and a chest tube was used to help inflate the lung.

28.   Electropolished tubes are mainly used in the electronics and pharmaceutical industries for the transportation of gases with extreme demands for freedom from impurities.