Levels of serum electrolytes and trace elements in dogs with kidney failure undergoing hemodialysis: A sequential analysis - Simina Velescu; Doru Morar; Romeo T. Cristina; Eugenia Dumitrescu; Isidora Radulov; Alexandru O. Doma; Florin Dan Simiz; Cristina Văduva; Adina Berbecea; Florin Muselin (Journal of Trace Elements in Medicine and Biology, 2026)