WASHINGTON, DC – In most developed countries, patients can be confident about the safety of blood transfusions. The problem is that maintaining a steady, uncontaminated supply of donor blood is not always easy.
华盛顿—在最发达国家，病人对输血安全性有信心。问题是保持稳定的无污染献血源有时并不容易。有没有希望保证随时随地都有安全血液的充足供应？