81.   For this reason concentrations of potentially interfering metal ions approximating the serum levels are used in the standards.

82.   Four coverages are used in the case study.

83.   Frequently used in discussions about scanners as a measure of their ability to capture halftone images.

84.   Garlic, for example, must only be used in tiny amounts or it will blister the skin.

85.   Gas heaters should only be used in well-ventilated rooms as they give off carbon monoxide.

86.   Ground-based data as well as the latest information from the Pioneer and Voyager spacecraft are used in developing both physical descriptions and theoretical understanding.

87.   Growth of Algae Phosphates are used in detergents, fertilisers and many other manufactured products.

88.   Guy de Chauliac had pointed out that his ointment was not without dangers if used in too great a quantity.