TY - JOUR T1 - Beyond bone marrow: a new source of stem cells JF - Canadian Medical Association Journal JO - CMAJ SP - 683 LP - 683 VL - 164 IS - 5 AU - Christine I. Chen AU - Armand Keating Y1 - 2001/03/06 UR - http://www.cmaj.ca/content/164/5/683.abstract ER -