31.   Hospital staffers are required to keep dangerous drugs under lock and key, and have elaborate tracking systems to prevent theft of medications, Wade said.

32.   How had he managed to create and install the elaborate system, he was asked.

33.   His team even set up an elaborate system of wristbands and waiting lines for ticket sales to help discourage scalpers.

34.   In contrast, the fourth-floor clinic where medical procedures took place was more protected with an elaborate system of glass and protective glass.

35.   In Castro Valley, Calif., Viacom Inc. has been preparing to test an elaborate system that includes video on demand, interactive games, information services and shopping.

36.   In each case, Christianity developed elaborate theological systems based on a few biblical texts to keep people subject to the cultural status quo and male authority.

37.   Large parking chains do have elaborate accounting systems.

38.   Many private schools have elaborate systems to identify those authorized to pick up a student after classes.

39.   Medical experts say hospitals have set up elaborate systems to make sure that human subjects are informed of risks and not exposed to undue danger.

40.   More elaborate systems place additional motion detectors near artwork or other valuables.