BACKGROUND: To investigate the WM microstructure deficits in heroin dependent individuals (HDIs) with different length of heroin dependence. and to investigate whether these WM deficits can be related to the duration of heroin use and to decision-making deficits in HDIs. METHODOLOGY/PRINCIPAL FINDINGS: Thirty-six HDIs [including eighteen sHDIs (duration of heroin dependent is less tha... https://herbsdailyes.shop/product-category/swabs/