@misc{indiciaec40b7b9b1634,
  title = {Explanation for premenstrual acne.},
  author = {M Williams and W J Cunliffe},
  year = {1973},
  doi = {10.1016/s0140-6736(73)92661-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4127313/},
  note = {Source identifier: 4127313}
}