APA (7th ed.) Citation

Fong, S., Garcia Vega, G., & León, V. Carcioembryonic antigen fraction in digestive cancer.

Chicago Style (17th ed.) Citation

Fong, S., G. Garcia Vega, and V. León. Carcioembryonic Antigen Fraction in Digestive Cancer.

MLA (9th ed.) Citation

Fong, S., et al. Carcioembryonic Antigen Fraction in Digestive Cancer.