Annunciatto, J. et al. 2026. Development and validation of an HPLC-DAD analytical method for quantitative and simultaneous determination of cefoperazone and prednisolone in intramammary ointment. Drug Analytical Research. 9, 1 (Mar. 2026), 3–12. DOI:https://doi.org/10.22456/2527-2616.146375.