@article{Vladimir201911 title = "Age-Dependence of Some Trace Element Concentrations and their Ratios in Human Prostatic Fluid", journal = "Journal of Aging Research And Healthcare", volume = "2", number = "4", pages = "11 - 20", year = "2019", note = "", issn = "2474-7785", doi = "https://doi.org/10.14302/issn.2474-7785.jarh-19-2910", url = "https://openaccesspub.orgjarh/article/1134", author = "Zaichick Vladimir and Zaichick Sofia", keywords = "variations with age in composition of human prostatic fluid", keywords = "trace element concentration", keywords = "trace element concentration ratios", keywords = "energy dispersive X-ray fluorescent analysis" }