@misc{indiciae9353e1b2e952,
  title = {Progesterone and preterm birth.},
  author = {Shlomit Riskin-Mashiah},
  year = {2004},
  doi = {10.1016/j.ajog.2003.12.043},
  url = {https://pubmed.ncbi.nlm.nih.gov/15290822/},
  note = {Source identifier: 15290822}
}