Ketamine’s efficacy in alleviating acute suicidal thoughts: a comprehensive systematic review and meta-analysis oleh Seyedeh Asrin Seyedoshohadaei, Ramyar Rahimi Darehbagh, Farshid Gholami, Elham Nouri, Media Babahajiani, Parisa Kohnepoushi, Yousef Moradi, Leila AzizKhani