TY JOUR TI Study the effect of supplement Stop-Cystitis® Plus in diseases of the urinary tract of cats and dogs KW cystitis KW cats KW dogs KW amino acids KW tryptophan KW methionine KW L-theonine KW plant extracts KW feed supplement JO Russian veterinary journal AU Petrova, O.V. PY 2021 IS 2021 PB Publishing house "Logos Press"