Olha Korobanova – «Group Support for Vulnerable Groups as a Prerequisite for Mental Health» 08.07.202009.07.2020 greenlevel https://mhgc21.org/en/mhgc21/events/october2018/MHGC-Proceedings-2018/Group-Support-for-Vulnerable-Groups-as-a-Prerequisite-for-Mental-Health