PT - JOURNAL ARTICLE AU - Peter M. Andersen TI - Is all ALS genetic? AID - 10.1212/WNL.0000000000004127 DP - 2017 Jul 18 TA - Neurology PG - 220--221 VI - 89 IP - 3 4099 - http://n.neurology.org/content/89/3/220.short 4100 - http://n.neurology.org/content/89/3/220.full SO - Neurology2017 Jul 18; 89