1. Klassen, Liliane M B, Chequin, Andressa, Manica, Graciele C M, de Souza, Emanuel M, Klassen, Giseli. 2017. MMP9 gene expression regulation by intragenic epigenetic modifications in breast cancer. In Gene, 642, 461-466. doi:10.1016/j.gene.2017.11.054. https://pubmed.ncbi.nlm.nih.gov/29162512/
2. Stankovic, Marija, Kojic, Snezana, Djordjevic, Valentina, Mitic-Milikic, Marija, Radojkovic, Dragica. 2016. Gene-environment interaction between the MMP9 C-1562T promoter variant and cigarette smoke in the pathogenesis of chronic obstructive pulmonary disease. In Environmental and molecular mutagenesis, 57, 447-54. doi:10.1002/em.22025. https://pubmed.ncbi.nlm.nih.gov/27270564/
3. Wang, Kai, Zhou, Yi, Li, Gang, Wang, Jin, Zhao, Xinhan. 2018. MMP8 and MMP9 gene polymorphisms were associated with breast cancer risk in a Chinese Han population. In Scientific reports, 8, 13422. doi:10.1038/s41598-018-31664-3. https://pubmed.ncbi.nlm.nih.gov/30194384/
4. Yang, Rui, Han, Li, Zeng, Xiantie. 2018. A functional polymorphism at miR‑491‑5p binding site in the 3'UTR of MMP9 gene confers increased risk for pressure ulcers after hip fracture. In Oncology reports, 39, 2695-2702. doi:10.3892/or.2018.6338. https://pubmed.ncbi.nlm.nih.gov/29620239/
5. Falzone, Luca, Salemi, Rossella, Travali, Salvatore, Candido, Saverio, Libra, Massimo. . MMP-9 overexpression is associated with intragenic hypermethylation of MMP9 gene in melanoma. In Aging, 8, 933-44. doi:10.18632/aging.100951. https://pubmed.ncbi.nlm.nih.gov/27115178/
6. Kunt, Atike Tekeli, Isbir, Selim, Gormus, Uzay, Yilmaz, Seda Gulec, Isbir, Turgay. . Polymorphisms of MMP9 and TIMP2 in Patients with Varicose Veins. In In vivo (Athens, Greece), 29, 461-5. doi:. https://pubmed.ncbi.nlm.nih.gov/26130791/