1. Donna Spiegelman is with the departments of Epidemiology, Biostatistics, Nutrition, and Global Health, Harvard T. H. Chan School of Public Health, Boston, MA. Donna Spiegelman and Molin Wang are also with the Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston. Polyna Khudyakov is with the Department of Epidemiology, Harvard T. H. Chan School of Public Health. Molin Wang is with the departments of Epidemiology, Biostatistics, and Medicine, Harvard T. H. Chan School of Public...