@article{nondela_arnold_cox_2018, 
  title={Novel technique for endoscopic retrieval of a ring-shaped gastric foreign body}, 
  volume={56}, 
  DOI={10.17159/2078-5151/2018/v56n3a2390}, 
  publisher={Academy of Science of South Africa}, 
  author={Nondela and Arnold and Cox}, 
  year={2018}
  }