Sources:
https://www.healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2021/75309a-eng.php.
Government.
https://www.elconfidencial.com/espana/2021-04-15/sanidad-pide-no-utilizar-mascarillas-que-contengan-grafeno_3036504/.
News.
https://www.elconfidencial.com/espana/coronavirus/2021-04-16/sanidad-mascarillas-grafeno-investigacion_3034271/.
News.
https://medium.com/edge-of-innovation/how-safe-are-graphene-based-face-masks-b88740547e8c.
Blog.
Related:
https://rumble.com/vj25zh-covid-19-is-caused-by-graphene-oxide-introduced-by-several-ways.html.
Video.
The title of the video is likely inaccurate or possibly even entirely incorrect. However, Richard Delgado is the person who commissioned Pablo Campra Madrid to examine the COVID-19 vaccine. Without him, we would not have the information about graphene in the vaccines at all. Richard Delgado shows information from the resulting report in this video. Use discretion with this information.
https://spectrum.ieee.org/nanoclast/semiconductors/materials/polymer-embedded-with-metallic-nanoparticles-enables-soft-robotics.
Research Journal.