PeerJ Author 100 Points Contributions by role Author 100 Contributions by subject area Cell Biology Molecular Biology Feng Li PeerJ Author Summary Cell Biology Molecular Biology PeerJ Contributions Articles 1 July 4, 2018 High expression level of MMP9 is associated with poor prognosis in patients with clear cell renal carcinoma Haitao Niu, Feng Li, Qingshui Wang, Zhoujie Ye, Qi Chen, Yao Lin https://doi.org/10.7717/peerj.5050 PubMed 30013825