發送短信 : The Effect of Low Preoperative Ejection Fraction on Mortality After Cardiac Surgery in Indonesia

  _____     _____    _    _    _    _     _____   
 /  ___||  |  ___|| | || | || | || | ||  |__  //  
| // __    | ||__   | || | || | || | ||    / //   
| \\_\ ||  | ||__   | \\_/ || | \\_/ ||   / //__  
 \____//   |_____||  \____//   \____//   /_____|| 
  `---`    `-----`    `---`     `---`    `-----`