1.   Where more than one sample has been used, mean values are shown here, although there are within-species differences.

2.   When small samples are used to estimate population standard deviations, the results are biased in the direction of underestimation.

3.   Where such studies make use of the survey, they tend to be smaller in scale and more analytic in scope using directed samples.

4.   Dilution, spiking, and recovery experiments were performed for each element using a sample of pooled gastric juice, diluted as above.

5.   In treated patients and in controls six samples were used for each index.

6.   The isotropic bile samples were subsequently used to measure the nucleation time and the relative distribution of vesicular cholesterol.