@article{4328,
  author       = {Thiele, Christian and Hirschfeld, Gerrit},
  issn         = {2167-8359},
  journal      = {PeerJ},
  publisher    = {PeerJ},
  title        = {{An observational study on the adherence to study registrations in German interventional and observational studies from various fields}},
  doi          = {10.7717/peerj.16015},
  volume       = {11},
  year         = {2023},
}

@article{2377,
  author       = {Baez Gonzalez, Marcos and Khaghani Far, Iman and Ibarra, Francisco and Ferron, Michela and Didino, Daniele and Casati, Fabio},
  issn         = {2167-8359},
  journal      = {PeerJ},
  publisher    = {PeerJ},
  title        = {{Effects of online group exercises for older adults on physical, psychological and social wellbeing: a randomized pilot trial}},
  doi          = {10.7717/peerj.3150},
  volume       = {5},
  year         = {2017},
}

@article{469,
  author       = {Hirschfeld, Gerrit and Wager, J. and Zernikow, B.},
  issn         = {2167-8359},
  journal      = {PeerJ},
  keywords     = {Chronic pain, Health care utilization, Children and adolescents, Sequential sampling},
  number       = {e916},
  pages        = {1--12},
  title        = {{Physician consultation in young children with recurrent pain - a population-based study}},
  doi          = {10.7717/peerj.916},
  volume       = {3},
  year         = {2015},
}