@article{SchwaabRauchVoelleretal.2020,
  author    = {Schwaab, Bernhard and Rauch, Bernhard and V{\"o}ller, Heinz and Benzer, Werner and Schmid, Jean-Paul},
  title     = {Beyond randomised studies},
  series = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  volume    = {28},
  journal   = {European journal of preventive cardiology : the official ESC journal for primary \& secondary cardiovascular prevention, rehabilitation and sports cardiology},
  number    = {17},
  publisher = {Oxford Univ. Press},
  address   = {Oxford},
  issn      = {2047-4873},
  doi       = {10.1177/2047487320936782},
  pages     = {E17 -- E19},
  year      = {2020},
  language  = {en}
}