-start a dangerous trend in which lower-income groups were disproportionately targeted or incentivized to give up their marrow and people with rarer blood types demanded more money for their valuable cells . U.S. appeals court rules that donors may sell their bone-marrow tissue . Plaintiffs argue that paying people for their tissue may encourage a greater supply of it . Ruling only applies to marrow collected through the blood stream . Comment:
U.S. appeals court rules that donors may sell their bone-marrow tissue . Plaintiffs argue that paying people for their tissue may encourage a greater supply of it . Ruling only applies to marrow collected through the blood stream . Comment: