Methodological Aspects

Measuring salivary cortisol in studies of child development: watch out--what goes in may not come out of saliva collection devices. (2007).
Harmon AG, Hibel LC, Rumyantseva O, Granger DA.
Dev Psychobiol, 49(5):495-500.

Methodological Considerations in the Use of Salivary a-Amylase as a Stress Marker in Field Research. (2008)
Jason a. Decaro
American journal of human biology
Sep-Oct;20(5):617-9.

Two formulas for computation of the area under the curve represent measures of total hormone concentration versus time-dependent change (2003).
Pruessner JC, Kirschbaum C, Meinlschmid G, Hellhammer DH.
Psychoneuroendocrinology. Oct;28(7):916-31