61.   Antioxidants are a defence against free radical activity and epidemiological studies confirm that populations with a low level of antioxidants may have a higher risk of colorectal cancer.

62.   Scottish Rig Repairers had a difficult year due to the low level of rig conversion and modification activities.

63.   Low levels of IgG antibodies against myeloperoxidase or antigen were also found occasionally in sera from patients with ulcerative colitis and primary sclerosing cholangitis.

64.   Molecular studies indicate that this receptor is expressed at low levels only in normal adult hepatocytes but that expression is increased in hepatoma cells for foetal hepatocytes.

65.   In patients with heart failure, catecholamine concentrations are increased at rest and at low levels of exercise, and attenuated at maximum exercise.

66.   The existence of the bread scale was to guarantee subsistence at a very low level.

67.   The criteria for determining selection were a high percentage of total employment in agriculture, and a low level of agricultural income and socio-economic development.

68.   The distribution of successful firms, which includes various niche players, suggests that entry at a low level of activity need not entail losses.

69.   We had a strong improvement in operating cash generation and that and the sale of brought net debt down to a low level.

70.   This animal does not strip bark like other squirrels, but merely removes flakes of the large smooth-barked trees with low levels of hydrolysable tannins.