AU - Freemon FR TI - Hierarchies in neurology: A reappraisal of a jacksonian concept PT - JOUR DP - 1989 TA - JAMA pages = {3063-3064}, VI - 262 IP - 21 AID - 10.1001/jama.1989.03430210105043 [doi] 4100 - http://dx.doi.org/10.1001/jama.1989.03430210105043 SO - JAMA December 1, 1989 262(21):3063