Received: 23 February 2018
Accepted: 25 July 2018
First Online: 3 October 2018
Compliance with ethical standards
: Karl-Dietrich Sievert Travel grant, BPH study investigator, conducted workshops for Neotract. Martin Schonthaler BPH-6 study investigator, conducted workshops for Neotract. Richard Berges BPH-6 study investigator. Patricia Toomey None. Annika Herlemann None. Florian Miller None. Ulrich Wetterauer BPH-6 study investigator. Christian Gratzke BPH-6 Study Investigator. Bjorn Volkmer None. Bastian Amend None.
: All patients provided informed consent, which is noted in the manuscript.