Hi , I found some information that I hope will be useful:
https://www.orpha.net/en/disease/detail/589?name=myasthenia%20gravis&mode=name
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8686543/
https://www.rarediseaseadvisor.com/disease-info-pages/myasthenia-gravis-epidemiology/
https://www.rarediseaseadvisor.com/disease-info-pages/neuromyelitis-optica-spectrum-disorder-nmosd/
https://www.orpha.net/en/disease/detail/71211#:~:text=Neuromyelitis%20optica%20spectrum%20disorder%20(NMOSD,of%20affected%20individuals%20are%20female.
https://pubmed.ncbi.nlm.nih.gov/36745300/
Please let us know if we can help with anything else. - Warmly, Donna (Team Member)