国大conduct a research, reward $80hi, dear friends There is a research going on at nus medicine department which need chinese,21 yrs old and above to draw 50ml of blood. You will be awarded $80 dollars. 国大血液研究，21周岁以上中国人，提取50ml血液，报酬 $80.若有兴趣,请联系我 英超 hp 81274636.