The correlation between urinary oestrogen and vaginal cytology.

@article{Young1957TheCB,
  title={The correlation between urinary oestrogen and vaginal cytology.},
  author={Stretton Young and Richard D. Bulbrook and F. C. Greenwood},
  journal={Lancet},
  year={1957},
  volume={272 6964},
  pages={350-3}
}