1.   To test the first possibility P was calculated using the same procedure as before but this time for individual subjects rather than stimuli.

2.   Lattice enthalpies can also be calculated using a theoretical model.

3.   The LDL cholesterol fraction was calculated indirectly using the Friedewald equation.

4.   S phase was calculated using a rectangular distribution.

5.   All statistics were calculated using the ARCUS Professional statistics package.

6.   The area under the breath hydrogen curve was calculated using the trapezoid rule.

7.   The logit estimate of the common odds ratio was calculated using the method of Woolf.

8.   Net absorption of water and electrolytes was calculated using standard formulas.