Received: 18 September 2020
Accepted: 21 October 2020
First Online: 11 December 2020
Ethics approval and consent to participate
: This retrospective study was performed following the ethical policies of the Sun Field Clinic in Tokyo, Japan, and was approved by its related Ethics Committee of the World Academy of Anti-Aging and Regenerative Medicine (approval No. 4-001). Written informed consent had been obtained from the patients before performing the procedures.
: Consent to publish had been obtained from the patients.
: The authors declare that they have no competing interests.