[1
]
Department of Medicine, University of Ottawa, Ottawa Ontario, Canada2Clinical Epidemiology
Program, The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
[2
]
Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems
Modeling of Acute Illness (CRISMA) Center, University of Pittsburgh, Pittsburgh, Pennsylvania.
[3
]
Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems
Modeling of Acute Illness (CRISMA) Center, University of Pittsburgh, Pittsburgh, Pennsylvania4Department
of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsy.
[4
]
Division of Cardiology, University of Pennsylvania, Philadelphia6Division of Cardiology,
Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania.
[5
]
Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania7Department
of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
[6
]
Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania.
[7
]
Department of Epidemiology, University of North Carolina Gillings School of Global
Public Health, University of North Carolina at Chapel Hill, Chapel Hill.
[8
]
Division of Epidemiology and Community Health, School of Public Health, University
of Minnesota, Minneapolis.
[9
]
Department of Neurology, College of Physicians and Surgeons, Columbia University,
New York, New York12Department of Epidemiology, Mailman School of Public Health, Columbia
University, New York, New York.
[10
]
Department of Medicine, Wake Forest University, Winston-Salem, North Carolina.
[11
]
Department of Biostatistics, School of Public Health, University of Washington, Seattle.
[12
]
Department of Critical Care Medicine, The Clinical Research, Investigation, and Systems
Modeling of Acute Illness (CRISMA) Center, University of Pittsburgh, Pittsburgh, Pennsylvania15Veterans
Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania.
