Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Flowchart illustrating literature search and exclusion process (PRISMA diagram).
Abbreviations: ASL = arterial spin labeling, AVH = auditory verbal hallucinations, CLZ = clozapine, CT = computed tomography, DTI = diffusion tensor imaging, MRS = magnetic resonance imaging, fMRI = functional MRI, MRS = magnetic resonance spectroscopy, PET = positron emission tomography, SPECT = single photon emission tomography, TRS = treatment resistant schizophrenia.
