@misc{indiciaeeea9fcce892b,
  title = {Stagewise, group sequential experimental designs for quantal responses. one-sample and two-sample comparisons.},
  author = {P I Feder and C T Olson and D W Hobson and M C Matthews and R L Joiner},
  year = {1991},
  doi = {10.1016/s0149-7634(05)80104-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/2052185/},
  note = {Source identifier: 2052185}
}