UPPER EUS ENDOSCOPIST DIRECTED PROPOFOL SEDATION: RISKS FACTORS OF DESATURATION - Bazaga, S; Ballester, R; Vargas, A; Alburquerque, M; Zaragoza, N; Torres, G; Pechkova, M; Miñana, JM; Reñe, JM; Gonzalez-Huix, F (Endoscopy, 2020)