PT - JOURNAL ARTICLE AU - Robert Thirsk AU - Andre Kuipers AU - Chiaki Mukai AU - David Williams TI - The space-flight environment: the International Space Station and beyond AID - 10.1503/cmaj.081125 DP - 2009 Jun 09 TA - Canadian Medical Association Journal PG - 1216--1220 VI - 180 IP - 12 4099 - http://www.cmaj.ca/content/180/12/1216.short 4100 - http://www.cmaj.ca/content/180/12/1216.full SO - CMAJ2009 Jun 09; 180