@article{FrickThinnesStangier2020,
  author    = {Artjom Frick and Isabel Thinnes and Ulrich Stangier},
  title     = {Metta-based group meditation and individual cognitive behavioral therapy (MeCBT) for chronic depression: study protocol for a randomized controlled trial},
  journal   = {Trials},
  volume    = {21},
  number    = {20},
  pages     = {1 -- 14},
  doi       = {10.1186/s13063-019-3815-4},
  year      = {2020},
}