title: Smoking and multiple sclerosis, cause or coincidence?
authors: Department of Nutrition, Harvard School of Public Health, 655 Huntington Avenue, Building 2, 3rd Floor, Boston, MA 02115, USA. Electronic address: palacios@hsph.harvard.edu.
authors: Natalia
authors: N
authors: Palacios
authors: Department of Nutrition, Harvard School of Public Health, 655 Huntington Avenue, Building 2, 3rd Floor, Boston, MA 02115, USA; Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
authors: Kelly
authors: K
authors: Claire Simon