@misc{indiciae9e56951c09db,
  title = {Closed testing procedures for group sequential clinical trials with multiple endpoints.},
  author = {D I Tang and N L Geller},
  year = {1999},
  doi = {10.1111/j.0006-341x.1999.01188.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/11315066/},
  note = {Source identifier: 11315066}
}