@article{m. michalska2011of,
  title={Efficiency of postoperative pain management after gynecologic oncological surgeries with the use of morphine +	acetaminophen + ketoprofen versus morphine +	metamizol + ketoprofen},
  author={samulak,m. michalska,m. gaca,m. wilczak,e. mojs,m. chuchracki},
  journal={European Journal of Gynaecological Oncology},
  volume={32},
  number={2},
  pages={168--170},
  doi = {10.12892/ejgo201102168},
  year={2011}
}