APA (7th ed.) Citation

Celle, M. E., Carelli, V., & Fornarino, S. (2010). Secondary headache in children. Neurological Sciences, 31, 81. https://doi.org/10.1007/s10072-010-0279-4

Chicago Style (17th ed.) Citation

Celle, M. E., V. Carelli, and S. Fornarino. "Secondary Headache in Children." Neurological Sciences 31 (2010): 81. https://doi.org/10.1007/s10072-010-0279-4.

MLA (9th ed.) Citation

Celle, M. E., et al. "Secondary Headache in Children." Neurological Sciences, vol. 31, 2010, p. 81, https://doi.org/10.1007/s10072-010-0279-4.