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 . Experts worry those in low-income brackets might try to sell other body parts .