TI - Characterization of in vitro bioactive performance of Hypericum perforatum using response surface methodology AU - KAPLAN, M. AU - KÖPRÜ, S. AU - SAY, R. AU - KARAMAN, K. AU - YILMAZ, M.M. SO - Sigma Journal of Engineering and Natural Sciences 2021;39:392-403. DO - 10.14744/sigma.2021.00027