Prof. Dr. Vladimir Zaichick, and Dr. Sofia Zaichick. “A Systematic Review of The Zinc Concentrations in The Prostate Fluid of Normal and Hyperplastic Gland”. Journal of Medical Biomedical and Applied Sciences, vol. 7, no. 12, Dec. 2019, pp. 303-11, doi:10.15520/jmbas.v7i12.204.