@misc{indiciaec2e1d7868592,
  title = {Physiological adaptations during pregnancy.},
  author = {W R Camann and G W Ostheimer},
  year = {1990},
  doi = {10.1097/00004311-199002810-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/2403986/},
  note = {Source identifier: 2403986}
}