41.   A subsequent study by the institute and the U.S. Geological Survey, which included digging up materials for radiocarbon-dating, confirmed the threat is real.

42.   If confirmed in subsequent studies, the findings may advance understanding of how the hallucinations occur and how they can be curtailed.

43.   Subsequent studies in Norway, Britain and Switzerland backed up these findings.

44.   Some subsequent studies have indicated that the synthetic substitute was less effective than the natural product.

45.   Subsequent studies in Norway, Britain, Switzerland and Germany basically backed up these findings.

46.   Subsequent studies in the United States, England and Germany also produced positive results, he said.

47.   Subsequent studies elsewhere supported these findings.

48.   Subsequent studies have found that laboratories falsely match samples once in a few hundred to a thousand times.

49.   Subsequent studies in Norway, Britain, Switzerland and Germany basically backed up those findings.

50.   Subsequent studies have indicated some stores are starting to nudge up their Belgian franc prices so they can be converted into nicely rounded euro figures.