31.   The efforts to curb use of these drugs, as well as the increasing concern about possible dangers, have caused a drop in demand in recent months.

32.   The drop was caused by speculation that the oil cartel may increase production, although its leaders have said that they had no plans to do so.

33.   The fund was created last month to support the main index in case non-economic factors causes a drop in investor confidence in the market.

34.   The reduced output will cause a drop in exports, Shell said.

35.   The reason for this action was because the drug can cause a drop in blood count, and in fact, has been linked to several deaths.

36.   This caused a drop in the index of aggregate weekly hours, which skidded eight-tenths of a percent while the index for manufacturing was unchanged.

37.   To increase their income as managed care has caused a drop in inpatient stays and reimbursement rates, hospitals are trying to market and expand their most lucrative services.

38.   With high doses, he wrote, it may also promote sleep by causing a drop in body temperature and by influencing daily cycles of fatigue and sleep.

39.   A prolonged drought last year and a recent series of strong typhoons struck agricultural lands in the central and northern Philippines, causing sharp drops in production.

40.   According to recent reports, several German retailers of Benetton products have questioned the campaigns and claimed they caused a drop in sales.