@article{mario alberto isiordia espinoza2014is,
  title={Ketoprofen Is More Effective Than Diclofenac After  Oral Surgery When Used as a Preemptive Analgesic:  A Pilot Study},
  author={grace carolaine esquivel velásquez,luis a. german santa cruz,mario alberto isiordia espinoza},
  journal={Journal of Oral & Facial Pain and Headache},
  volume={28},
  number={2},
  pages={153--158},
  doi = {10.11607/ofph.1200},
  year={2014}
}