Hartmann, Bernd Lorenz http://orcid.org/0000-0001-8831-3746
Atzl, Michèle Desiré
Article History
Received: 16 February 2019
Accepted: 6 August 2019
First Online: 15 August 2019
Conflict of interest
: B.L. Hartmann and M.D. Atzl declare that they have no competing interests.