@article{SteinWollschlaegerKreienbergetal.2016,
  author    = {Roland Gregor Stein and Daniel Wollschl{\"a}ger and Rolf Kreienberg and Wolfgang Janni and Manfred Wischnewsky and Joachim Diessner and Tanja St{\"u}ber and Catharina Bartmann and Mathias Krockenberger and J{\"o}rg Wischhusen and Achim W{\"o}ckel and Maria Blettner and Lukas Schwentner},
  title     = {The impact of breast cancer biological subtyping on tumor size assessment by ultrasound and mammography - a retrospective multicenter cohort study of 6543 primary breast cancer patients},
  journal   = {BMC Cancer},
  volume    = {16},
  number    = {549},
  doi       = {10.1186/s12885-016-2426-7},
  year      = {2016},
}