Received: 6 March 2020
Accepted: 3 May 2020
First Online: 14 May 2020
: The study was approved by ethical committees of Hôtel-Dieu de France Hospital (CEHDF1017) and the HPC (HPC-017-2017). Participants were fully informed of the purpose and procedures of the study and had the adequate time to ask questions and ponder about their voluntary participation. All patients or their legal representatives gave their written informed consent prior to inclusion.
: The authors have no conflicts of interest to disclose; part of this work was included in the article -Negative Symptoms in Schizophrenia: correlation with clinical and genetic factors-.