There are a few studies listed here in the article, maybe that’s of interest . "Astrazeneca vaccination : According to this, significantly more cases of Guillain-Barré syndrome , acute disseminated encephalomyelitis and transverse myelitis occurred“.  Etc. The article says : side effects rare , but proven and recognised by studies. https://amp.focus.de/gesundheit/news/99-millionen-probanden-grosse-studie-identifiziert-die-haeufigsten-nebenwirkungen-der-corona-impfung_id_259695927.html