主要分布在骨髓内的一群原始多能干细胞，可分化为各种血细胞haematopoietic stem cell(Britain); hematopoietic stem cell(US)

• 九所学校发出倡议，呼吁社会各界为建立海南造血干细胞资料库募捐。

  Nine schools have put out a call for all areas of society to donate money towards the establishment of the Hainan haematopoietic stem cell database.