@misc{indiciae02f6eab658fd,
  title = {Menstrual patterns in Upper Egypt.},
  author = {G Y el-Kholi and A A Hammouda and M F Fathalla and M M Shaaban and M Morad and A S Sabri},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5170722/},
  note = {Source identifier: 5170722}
}