[1
]
Department of Surgery, Mayo Clinic, Rochester, MN.
[2
]
Surgical Outcomes Program, Robert D and Patricia E Kern Center for the Science of
Health Care Delivery, Mayo Clinic, Rochester, MN.
[3
]
Department of Health Sciences Research, Mayo Clinic, Rochester, MN.
[4
]
Survey Research Center, Mayo Clinic, Rochester, MN.
[5
]
Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN.
[6
]
Department of Orthopedics, Mayo Clinic, Rochester, MN.
[7
]
Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN.