Comparative study of the release of growth factors from platelet-rich plasma gel with different combinations of anticoagulants and activators  
Luo Tao1, 2, Li Fang1, Zhang Ning1, 3
Chinese Journal of Tissue Engineering Research . 2012, (16): 2893 -2897 .  DOI: 10.3969/j.issn.1673-8225.2012.16.010