PT - JOURNAL ARTICLE AU - Roger Collier TI - Harp seal heart valves being tested for human use AID - 10.1503/cmaj.090936 DP - 2009 Jun 23 TA - Canadian Medical Association Journal PG - 1290--1291 VI - 180 IP - 13 4099 - http://www.cmaj.ca/content/180/13/1290.short 4100 - http://www.cmaj.ca/content/180/13/1290.full SO - CMAJ2009 Jun 23; 180