APA (7th ed.) Citation

Kleebayoon, A., & Wiwanitkit, V. Gastrointestinal System Involvement in COVID. Galenos Publishing House.

Chicago Style (17th ed.) Citation

Kleebayoon, Amnuay, and Viroj Wiwanitkit. Gastrointestinal System Involvement in COVID. Galenos Publishing House.

MLA (9th ed.) Citation

Kleebayoon, Amnuay, and Viroj Wiwanitkit. Gastrointestinal System Involvement in COVID. Galenos Publishing House.

Warning: These citations may not always be 100% accurate.