أرسل هذا في رسالة قصيرة: Is spinal surgery safe for elderly patients aged 80 and above? Predictors of mortality and morbidity in an Asian population

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