Guanyi Xu

Simultaneous measurements of cortisol and cortisone in urine and hair for the assessment of 11β-hydroxysteroid dehydrogenase activity among methadone maintenance treatment patients with LC-ESI-MS/MS.

Huihua Deng, Zheng Chen, Jin Yang, 2014, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Elevated Hair Cortisol Levels among Heroin Addicts on Current Methadone Maintenance Compared to Controls

Zuhong Lu, Huihua Deng, Zheng Chen, 2016, PloS one.