Received: 10 February 2022
Accepted: 12 May 2022
First Online: 23 May 2022
: The research involves animal experiments. In acquiring frog skin secretions, all the procedures were subjected to ethical approval and carried out under appropriate UK animal research personal and project licences. Furthermore, in vivo antimicrobial assay was approved by the Animal Care and Use Committee of Nanjing University of Chinese Medicine.
: Not applicable.
: The authors declare that they have no competing interests.