Venovenous extracorporeal membrane oxygenation versus conventional mechanical ventilation to treat refractory hypoxemia in patients with acute respiratory distress syndrome: a retr... oleh Surat Tongyoo, Chairat Permpikul, Siwalai Sucher, Preecha Thomrongpairoj, Akekarin Poompichet, Ranistha Ratanarat, Nitipatana Chierakul