Vorasettakarnkij, Yongkasem. 2010. “Transthoracic Echocardiography in Critically Ill Patients: Can We Use a New Parameter for Diagnosis of RV Dysfunction?”. Clinical Critical Care 18 (3). Bangkok, Thailand:5. https://he02.tci-thaijo.org/index.php/ccc/article/view/253593.