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Table 1 Criteria defining the four PCOS phenotypes

From: Polycystic ovary syndrome phenotype does not have impact on oocyte morphology

  Polycystic ovary syndrome
Modified Rotterdam Criteria Phenotype A Phenotype B Phenotype C Phenotype D
Oligoanovulation Yes Yes No Yes
Clinical and/or biochemical hyperandrogenism Yes Yes Yes No
PCOM, AMH ≥35 pmol/l, or both Yes No Yes Yes