Ovulation inhibition with different doses of levonorgestrel and other progestogens: clinical and experimental investigations.

@article{Spona1979OvulationIW,
  title={Ovulation inhibition with different doses of levonorgestrel and other progestogens: clinical and experimental investigations.},
  author={Juergen Spona and William Howard Schneider and Ch. Bieglmayer and Roxann Schroeder and Robert Pirker},
  journal={Acta obstetricia et gynecologica Scandinavica. Supplement},
  year={1979},
  volume={88},
  pages={
          7-15
        }
}
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