Application of mesenchymal stem cells derived from bone marrow and umbilical cord in human hair multiplication Volume 60, Issue 2, Pages 74-83 November 2010 Bo-Young Yooa, Youn-Ho Shinb, Hee-Hoon Yoonac, Young-Kwon Seoa, Kye-Yong Songb, Jung-Keug Parkad Abstract