PT - JOURNAL ARTICLE AU - P. Ballem AU - C. Younger-Lewis TI - Editor's preface DP - 1998 Aug 25 TA - Canadian Medical Association Journal PG - 309--309 VI - 159 IP - 4 4099 - http://www.cmaj.ca/content/159/4/309.short 4100 - http://www.cmaj.ca/content/159/4/309.full SO - CMAJ1998 Aug 25; 159