Name	Location	Contribution
Julie Barberio, PhD	Epidemiologic Research and Methods LLC; Rollins School of Public Health, Emory University, Atlanta, GA	Major role in the acquisition of data; study concept or design; analysis or interpretation of data
Cathy Lally, MSPH	Epidemiologic Research and Methods LLC, Atlanta, GA	Study concept or design; analysis or interpretation of data
Varant Kupelian, PhD	Biogen, Cambridge, MA	Study concept or design; analysis or interpretation of data
Orla Hardiman, MD	Trinity Biomedical Sciences Institute, Dublin, Ireland	Drafting/revision of the manuscript for content, including medical writing for content
W. Dana Flanders, MD, DSc	Epidemiologic Research and Methods LLC; Rollins School of Public Health, Emory University, Atlanta, GA	Study concept or design; analysis or interpretation of data