Schmitz, Arndt A.
Hackethal, Sandra
Schulz, Anke
May, Ekkehard
Steinmeyer, Andreas
Zügel, Ulrich
Asadullah, Khusru
Article History
First Online: 6 March 2015
Competing interests
: All authors are employees of Bayer Pharma AG and all except S.H. hold stocks of Bayer Pharma AG.