[Is the resistance against trimethoprim-sulfonamide increasing?].

@article{Bollgren1991IsTR,
  title={[Is the resistance against trimethoprim-sulfonamide increasing?].},
  author={I Bollgren and B Fogstr{\"o}m and C E Myrb{\"a}ck},
  journal={Lakartidningen},
  year={1991},
  volume={88 4},
  pages={212}
}