@article{FreundPetersKlimmMahleretal.2011,
  author    = {Tobias Freund and Frank Peters-Klimm and Cornelia Mahler and Justine Rochon and Jochen Gensichen and Antje Erler and Martin Beyer and Annika Baldauf and Ferdinand M. Gerlach and Joachim Szecsenyi},
  title     = {Primary care practice-based care management for chronically ill patients (PraCMan): study protocol for a cluster randomized controlled trial [ISRCTN56104508]},
  journal   = {Trials},
  volume    = {12},
  number    = {Art. 163},
  pages     = {1 -- 9},
  doi       = {10.1186/1745-6215-12-163},
  year      = {2011},
}