PT - JOURNAL ARTICLE AU - Gavin Greenfield TI - Hand-held brain extenders DP - 2001 Aug 07 TA - Canadian Medical Association Journal PG - 273--273 VI - 165 IP - 3 4099 - http://www.cmaj.ca/content/165/3/273.1.short 4100 - http://www.cmaj.ca/content/165/3/273.1.full SO - CMAJ2001 Aug 07; 165