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Application \u2116 186-a corresponding to the current project was approved during the Bioethics Commission meeting \u2116 165-d held on 24.10.2024. The frogs were released into the natural habitat after the \u201cmilking\u201d procedure.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare that they have no competing interests that could have appeared to influence the work reported in this paper. The authors also declare no competing financial interest. Y.V. Vasil\u2019ev and M.C. Hare are employed by Agilent Technologies, manufacturer of the Agilent 6545XT AdvanceBio LC\/Q-TOF mass spectrometer.","order":2,"name":"Ethics","label":"Conflict of interest","group":{"name":"EthicsHeading","label":"Declarations"}}]}}