Diagnostic performance of late-night salivary cortisol measured by automated electrochemiluminescence immunoassay in obese and overweight patients referred to exclude Cushing’s syndrome - Belaya, Z E; Iljin, A V; Melnichenko, G A; Rozhinskaya, L Y; Dragunova, N V; Dzeranova, L K; Butrova, S A; Troshina, E A; Dedov, I I (Endocrine, 2012)