APA (7th ed.) Citation

Hodac, M., Hodacová, L., Parizek, P., & Bis, J. Syncope in old people.

Chicago Style (17th ed.) Citation

Hodac, M., L. Hodacová, P. Parizek, and J. Bis. Syncope in Old People.

MLA (9th ed.) Citation

Hodac, M., et al. Syncope in Old People.