31.  Soldiers brought down to base camp often suffer hearing, eyesight and memory loss because of prolonged use of oxygen masks.

32.  The Nobel Peace Prize laureate was put on a respirator, but developed a lung infection from prolonged use.

33.  A notice on all new personal stereos sold in France will warn consumers that prolonged use at high volume can make the listener as deaf as Beethoven.

34.  Janvier insisted there should be agreement between NATO and the United Nations, which had hesitated on the prolonged use of force in the past.

35.  Meanwhile, a medical doctor quit a Tokyo university Monday after he was criticized for his role in the prolonged use of unheated blood products in Japan.

36.  The meeting heard that the prolonged use of khat had notable harmful effects on the health.