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  _  __    ______    _____      ___      _____   
 | |/ //  /_   _//  /  ___||   / _ \\   /  ___|| 
 | ' //    -| ||-  | // __    / //\ \\ | // __   
 | . \\    _| ||_  | \\_\ || |  ___  ||| \\_\ || 
 |_|\_\\  /_____//  \____//  |_||  |_|| \____//  
 `-` --`  `-----`    `---`   `-`   `-`   `---`

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Text this: Central venous oxygen saturation is not a predictor of extubation success after simple weaning from mechanical ventilation in post-cardiac surgical patients