@article{choi_cho_park_nam_kim_lee_kim_kim_cho_2013, 
  title={Clinical analysis of orthostatic headache in Korean patients}, 
  DOI={10.1186/1129-2377-1-s1-p153}, 
  number={Suppl 1}, 
  publisher={Springer Nature}, 
  author={Choi and Cho and Park and Nam and Kim and Lee and Kim and Kim and Cho}, 
  year={2013}
  }