[Quantitative performance of prenatal sex determination by the saliva test and Richardson's pregnancy test].

@article{Boschann1955QuantitativePO,
  title={[Quantitative performance of prenatal sex determination by the saliva test and Richardson's pregnancy test].},
  author={H W Boschann and F J K SECHELMANN},
  journal={Geburtshilfe und Frauenheilkunde},
  year={1955},
  volume={15 4},
  pages={342-54}
}