Received: 30 January 2020
Accepted: 8 May 2020
First Online: 14 May 2020
Ethics approval and consent to participate
: This non-inventional trial was approved by the local ethics committee under the direction of Prim.-Doz. Dr. Oleksiy Tsybrovskyy on Sept. 13th, 2018, using the (house-internal) number EKS 21/18.
: Because there are no details on individuals reported within this manuscript, consent for publication of images is not required.
: The authors declare that they have no competing interests, neither financial nor non-financial.