AU  - Powers WJ, et al
TI  - NEurology
PT  - JOUR
DP  - 1999
TA  - JAMA
pages = {420},
VI  - 281
IP  - 5
AID  - 10-1001/pubs.JAMA-ISSN-0098-7484-281-5-jbk0203 [doi]
4100  - http://dx.doi.org/10-1001/pubs.JAMA-ISSN-0098-7484-281-5-jbk0203
SO  - JAMA February 3, 1999 281(5):420