Dear colleagues, For those interested in e-health and online health communities/online support groups/health-related social media specifically, we would like to raise attention to a CfP for a session on online health communities (Online health communities as new venues of healthcare tensions and paradoxes < https://eshms2018.wixsite.com/eshms2018lisbon/session-25>), which colleagues and I are organizing on the upcoming 17th ESHMS biennial conference in Lisbon (June 6-8, 2018). We would like to invite you to submit an abstract (up to 500 words) for this session. The deadline is December 15th, 2017. Abstracts should be submitted via web platform: http://leading.eventkey.pt/ger al/inserirresumo.aspx?evento=7&formulario=14. General information about the conference: https://eshms2018.wixsite.com/ eshms2018lisbon Hope to see you in Lisbon! Best, Gregor & Sara *prof.dr.Gregor Petric* Chair of Center for Methodology and Informatics Department of Social Informatics Faculty of Social Sciences University of Ljubljana Slovenia Assist. Sara Atanasova Center for Methodology and Informatics Faculty of Social Sciences University of Ljubljana Slovenia