APA (7th ed.) Citation

Caponnetto, V., Deodato, M., Robotti, M., Koutsokera, M., Pozzilli, V., Galati, C., . . . Raggi, A. (2021). Comorbidities of primary headache disorders: A literature review with meta-analysis. Journal of Headache & Pain, 22(1), 1. https://doi.org/10.1186/s10194-021-01281-z

Chicago Style (17th ed.) Citation

Caponnetto, Valeria, et al. "Comorbidities of Primary Headache Disorders: A Literature Review with Meta-analysis." Journal of Headache & Pain 22, no. 1 (2021): 1. https://doi.org/10.1186/s10194-021-01281-z.

MLA (9th ed.) Citation

Caponnetto, Valeria, et al. "Comorbidities of Primary Headache Disorders: A Literature Review with Meta-analysis." Journal of Headache & Pain, vol. 22, no. 1, 2021, p. 1, https://doi.org/10.1186/s10194-021-01281-z.