Article History
Received: 25 March 2021
Accepted: 6 June 2021
First Online: 21 June 2021
Declarations
:
: The application of PRP in anal fistulas was approved by the Bioethics Committee at the University of Medical Sciences in Poznań, Poland.
: This article does not contain any studies with animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare no competing interests.