APA (7th ed.) Citation

Kessler, T., Halberg, F., Otsuka, K., & Cornélissen, G. Dentist: Are you and yor patients at undue risk of a stroke or heart attack?

Chicago Style (17th ed.) Citation

Kessler, T., F. Halberg, K. Otsuka, and G. Cornélissen. Dentist: Are You and Yor Patients at Undue Risk of a Stroke or Heart Attack?

MLA (9th ed.) Citation

Kessler, T., et al. Dentist: Are You and Yor Patients at Undue Risk of a Stroke or Heart Attack?