Não informado. (2018). Pain. International Association for the Study of Pain.
Chicago-referens (17:e uppl.)Não informado. Pain. Seattle, Wash: International Association for the Study of Pain, 2018.
MLA-referens (8:e uppl.)Não informado. Pain. International Association for the Study of Pain, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.