Gibson, RG, Gibson, SLM, MacNeill, AD, Buchanan, WW Homoeopathic therapy in rheumatoid arthritis: evaluation by double-blind clinical therapeutic trial.
[doi.org]
However, the pathophysiological concept behind this term is not undisputed and typical migraine premonitory symptoms such as fatigue and yawning, but also a typical association
[ncbi.nlm.nih.gov]
Patients characteristically show other symptoms of migraine such as yawning, listlessness, and drowsiness during their attacks.
[headaches.org]