Name	Location	Contribution
Yifei Lu, PhD	Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill	Drafting/revision of the manuscript for content, including medical writing for content; major role in the acquisition of data; study concept or design; analysis or interpretation of data
James R. Pike, MBA	Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD	Drafting/revision of the manuscript for content, including medical writing for content
Ron Hoogeveen, PhD	Department of Medicine, Baylor College of Medicine, Houston, TX	Drafting/revision of the manuscript for content, including medical writing for content
Keenan Walker, PhD	Laboratory of Behavioral Neuroscience, National Institute on Aging, Bethesda, MD	Drafting/revision of the manuscript for content, including medical writing for content
Laura Raffield, PhD	Department of Genetics, School of Medicine, University of North Carolina at Chapel Hill	Drafting/revision of the manuscript for content, including medical writing for content
Elizabeth Selvin, PhD, MPH	Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD	Drafting/revision of the manuscript for content, including medical writing for content
Christy Avery, PhD	Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill	Drafting/revision of the manuscript for content, including medical writing for content
Stephanie Engel, PhD	Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill	Drafting/revision of the manuscript for content, including medical writing for content
Michelle M. Mielke, PhD	Department of Epidemiology and Prevention, Wake Forest University School of Medicine, Winston-Salem, NC	Drafting/revision of the manuscript for content, including medical writing for content
Tanya Garcia, PhD	Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill	Drafting/revision of the manuscript for content, including medical writing for content
Gerardo Heiss, PhD	Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill	Study concept or design
Priya Palta, PhD, MHS	Department of Neurology, School of Medicine, University of North Carolina at Chapel Hill	Drafting/revision of the manuscript for content, including medical writing for content; study concept or design