11.   Czech President Vaclav Havel, recovering from intestinal surgery, underwent an unexpected procedure to clear his lung Saturday after complications developed, doctors said.

12.   Czech President Vaclav Havel, recovering from intestinal surgery, underwent an unexpected procedure to clear one lung Saturday after complications developed, doctors said.

13.   Mother Teresa was taking strong antibiotics for her bronchial pneumonia and her chest was being massaged regularly to clear her lungs and aid her breathing.

14.   Parents routinely send their children away on holidays to clear their lungs.

15.   She was being given strong antibiotics for her bronchial pneumonia and her chest was being massaged regularly to clear her lungs and aid her breathing.