Figure 1From: Plasma, salivary and urinary cortisol levels following physiological and stress doses of hydrocortisone in normal volunteers Total plasma cortisol concentrations after oral and intravenous hydrocortisone. Individual (A) and mean (± SEM) (B) total plasma cortisol levels: endogenous (blue circle) levels and after oral (green triangle) or intravenous (red square) hydrocortisone.Back to article page