Proceedings of the Sixth Social Media Mining for Health (#SMM4H) Workshop and Shared Task Arjun Magge editor Ari Klein editor Antonio Miranda-Escalada editor Mohammed Ali Al-garadi editor Ilseyar Alimova editor Zulfat Miftahutdinov editor Eulalia Farre-Maduell editor Salvador Lima Lopez editor Ivan Flores editor Karen O’Connor editor Davy Weissenbacher editor Elena Tutubalina editor Abeed Sarker editor Juan M Banda editor Martin Krallinger editor Graciela Gonzalez-Hernandez editor 2021-06 Association for Computational Linguistics Mexico City, Mexico text conference publication smm4h-2021-social https://aclanthology.org/2021.smm4h-1.0/