@article{kim_choi_2015, 
  title={The Clinical Features and Surgical Outcome of Premature Children with Exotropia}, 
  volume={56}, 
  DOI={10.3341/jkos.2015.56.2.241}, 
  publisher={Korean Ophthalmological Society (KAMJE)}, 
  author={Kim and Choi}, 
  year={2015}
  }