@misc{indiciaef5b81067d506,
  title = {Twins and preterm labor.},
  author = {O A Rust and K G Perry and M E Andrew and W E Roberts and R W Martin and J C Morrison},
  year = {1997},
  url = {https://pubmed.ncbi.nlm.nih.gov/9131496/},
  note = {Source identifier: 9131496}
}