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[1]http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.2004408

[2]https://www.nejm.org/doi/full/10.1056/NEJMoa1112010

[3] Fisone G, Borgkvist A, Usiello A. Caffeine as a psychomotor stimulant: mechanism of action. Cell Mol Life Sci. 2004; 61:857¨C872. https://doi.org/10.1007/s00018-003-3269-3 PMID: 15095008

[4] Spyridopoulos I, Fichtlscherer S, Popp R, Toennes SW, Fisslthaler B, Trepels T, et al. Caffeine enhances endothelial repair by an AMPK-dependent mechanism. Arterioscler Thromb Vasc Biol. 2008; 28:1967¨C1974. https://doi.org/10.1161/ATVBAHA.108.174060 PMID: 18757291

[5] https://en.wikipedia.org/wiki/CDKN1B

[6] Hauck L, Harms C, An J, Rohne J, Gertz K, Dietz R, et al. Protein kinase CK2 links extracellular growth factor signaling with the control of p27(Kip1) stability in the heart. Nat Med. 2008; 14:315¨C324. https://doi.org/10.1038/nm1729 PMID: 18311148

[7]https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/caffeine/art-20049372

[8]https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/caffeine/art-20049372

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