An Obesity Paradox of Asian Body Mass Index after Cardiac Surgery: Arterial Oxygenations in Duration of Mechanic Ventilation oleh Chiu-Hsia Chang, Fan-Yen Lee, Chin-Chou Wang, Ying-Ni Chen, Hsin-Chu Chen, Huei-Ling Hung, Meng-Chih Lin, Shih-Feng Liu