Gut- and oral-dysbiosis differentially impact spinal- and bulbar-onset ALS, predicting ALS severity and potentially determining the location of disease onset oleh Harper S. Kim, John Son, Donghwan Lee, Joy Tsai, Danny Wang, E. Sandra Chocron, Seongwoo Jeong, Pamela Kittrell, Charles F. Murchison, Richard E. Kennedy, Alejandro Tobon, Carlayne E. Jackson, Andrew M. Pickering