Preoperative Frailty Assessment and Outcomes at 6 Months or Later in Older Adults Undergoing Cardiac Surgical Procedures: A Systematic Review.
Kim, Dae Hyun, Caroline A Kim, Sebastian Placide, Lewis A Lipsitz, and Edward R Marcantonio. 2016. “Preoperative Frailty Assessment and Outcomes at 6 Months or Later in Older Adults Undergoing Cardiac Surgical Procedures: A Systematic Review.”. Annals of Internal Medicine 165 (9): 650-60.