to determine whether or not a past history of depressive episodes is associated with this dysregulation , we studied the relationships among number of past depressive episodes , number of previous hospitalizations for depression , and number of years since first depressive episode and biological markers of depression ( postdexamethasone plasma cortisol levels and dexamethasone suppressor/nonsuppressor status ) .
C0011581
depressive episodes
C0011777
dexamethasone