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Wang, S., Bilal, M., Hu, H., Wang, W., & Zhang, X. (2018). 4-Hydroxybenzoic acid—a versatile platform intermediate for value-added compounds. Applied Microbiology and Biotechnology, 102(8), 3561–3571. doi:10.1007/s00253-018-8815-x 
10.1007/s00253-018-8815-x