Correction for: Cruz RA, Hogan N, Sconzert J, Sconzert M, Major EO, Lisak RP, Melamed E, Varkey TC, Meltzer E, Goodman A, Komogortsev O, Parsons MS, Costello K, Graves JS, Newsome S, Zamvil SS, Frohman EM, Frohman TC. Treating MS after surviving PML: Discrete strategies for rescue, remission, and...